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An ancient and mysterious book leads Crispin Guest into a deadly maze in this latest medieval noir mystery.

Crispin Guest, Tracker of London, is enjoying his ale in the Boar’s Tusk tavern – until a stranger leaves a mysterious wrapped bundle on his table, telling him, "You'll know what to do." Inside is an ancient leather-bound book written in an unrecognizable language. Accompanied by his apprentice, Jack Tucker, Crispin takes the unknown codex to a hidden rabbi, where they make a shocking it is the Gospel of Judas from the Holy Land, and its contents challenge the very doctrine of Christianity itself.

Crispin is soon drawn into a deadly maze involving murder, living saints, and lethal henchmen. Why was he given the blasphemous book, and what should he do with it? A series of horrific events confirm his fears that there are powerful men who want it – and who will stop at nothing to see it destroyed.

224 pages, Hardcover

First published April 1, 2019

49 people are currently reading
125 people want to read

About the author

Jeri Westerson

49 books427 followers
Los Angeles native JERI WESTERSON currently writes two new series: a Tudor mystery series, the King’s Fool Mysteries, with Henry VIII’s real court jester Will Somers as the sleuth and a Sherlockian pastiche series called An Irregular Detective Mystery, with one of Holmes’ former Baker Street Irregulars opening his own detective agency. She’s also written fifteen Crispin Guest Medieval Noir Mysteries, a series nominated for thirteen awards from the Agatha, to the Macavity, to the Shamus. She’s written several paranormal series (including a gaslamp-steampunk fantasy series), standalone historical novels, and had stories in several anthologies, the latest of which was included in SOUTH CENTRAL NOIR, an Akashic Noir anthology. She has served as president of the SoCal Chapter of Mystery Writers of America, president and vice president for two chapters of Sisters in Crime (Orange County and Los Angeles), and is also a founding member of the SoCal chapter of the Historical Novel Society. See JeriWesterson.com for discussion guides, book trailers, and more.

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Displaying 1 - 30 of 59 reviews
Profile Image for Ellen.
1,048 reviews176 followers
June 7, 2019
Traitor's Codex (Crispin Guest Medieval Noir #12) by Jeri Westerson.

This was my first Crispin Guest book although it is not the first in this series. The author explained Guest's background clearly so I was caught up to this time in his life.

A quiet evening finds Crispin savoring an ale as well as the atmosphere at the Boar's Tusk Tavern when a stranger approached. The strangers' features were well hidden from view by a hood brought low over his head. Crispin received a bundle from this unidentified person and was told that he'll know what to do with it.
Thus begins a tale that led Crispin on an adventure to unearth the background and meaning of this ancient scripture. Jack Tucker, Crispin's right-hand man, is as close to his Master during this endeavor as any apprentice/friend could possibly be. The events that followed soon became more hazardous than either one of them had anticipated.

I'm quite happily surprised at the enjoyment I had in reading this story. So different than the usual mystery series I've grown accustomed to. I found it entertaining and recommend it.
Profile Image for LJ.
3,159 reviews305 followers
July 8, 2019
First Sentence: Crispin Guest eyed the room.

Rather than being hired to find a missing person or item as he usually is, Tracker of London, Crispin Guest, is given a package and told he'll know what to do with it. Inside is an ancient book written in a language he's never seen but learns is Coptic. It is an unpublished book of the Bible which could challenge the very doctrine of Christian faith. The danger of possessing this book becomes real when people to whom Guest shows it are murdered. Someone very much wants the book, and all who know of it, destroyed.

It is always a pleasure to start a new Crispin novel. Westerson excels at acquainting one with the characters, setting, the scene, and drawing one immediately into the story. She creates a wonderful sense of place providing information and bits of history along the way, as well as establishing the mystery almost from the start. She creates a sense of normalcy and timelessness that supersedes the period.

Part of the joy of reading historical novels is in the things one learns, and there are numerous "who knew" moments included. Special touches are the Glossary provided at the beginning and the Afterword at the end. One small criticism is that while the dialogue provides the feel of the period, there are times it seems to try too hard and ends up being awkward.

No matter what else, it's the characters who draw one into the book, and repeatedly back to the series. Crispin is a character who has grown and, dare one say, mellowed over the years while still being someone on whom one can always depend. The meetings with those Crispin loved and was loyal to in the past, are real and touching, particularly that with King Richard II. Jack, his "bagman" if one will, has undergone the most change; aging, growing, maturing, while being ever loyal and dedicated. The changes in his circumstances through the series have added dimension to all the characters and the stories.

Westerson makes one think—'You cannot stomp on an idea, Excellency. Once the idea is out in the world, it is like the bee that flits from flower to flower. It cannot be stopped. Ideas are what keep mankind from stagnating in a rotten pool. It is not once nor twice but times without number that the same ideas make their appearance in the world.' Some of those insights are particularly relevant today—'Character. Character does not only belong to those with breeding, my lord. Good character is conferred on the lowliest of peasants. God grants certain men and women this character and no trial of Job will see them change their minds on it.'

"Traitor's Codex" is a very good book. There is much about the plot which can't be said without giving things away. While there are several threads, each holds its own, and our attention without ever becoming confusing, yet come together in a strong cloth.

TRAITOR'S CODEX (HistMys-Crispin Guest-England-1394) – VG+
Westerson, Jeri
Severn House – June 2019
Profile Image for eyes.2c.
3,105 reviews109 followers
June 14, 2019
Of rogues and relics!

God's blood! A most favorite medieval oath in Crispin Guest novels. And oh my goodness, a sharp comment on this Crispin novel with surprises around every corner.
I don't want to give anything away but the encounters dogging Crispin's progress are almost a catalogue of The Tracker's life until now.
Miraculous really!
So Crispin is having a drink at his favorite watering hole, the Boar's Tusk tavern when some unknown fellow leaves a parcel for him with the words, "You'll know what to do with it."
The roughly wrapped bundle is an ancient leather bound book written in an unknown language, although our Crspin has some clue. However as he goes about trying to have this codex deciphered, death dogs those individuals he involves. Powerful enemies are abroad! This relic, shrouded in secrecy, is attracting those who would destroy all knowledge of it. Crispin fears for the life of Jack Tucker's family, now his family. Crispin and Jack have added impetuous for solving the mystery.
Added to this there seems to be a person abroad presenting himself to Londoners as The Tracker. This cannot be allowed to continue. Crispin's tracker reputation is all he has left and he guards it jealously.
Thinking back to the younger Crispin and contrasting him to the older more thoughtful, even wiser person he now is, rounds out the Crispin we all know and love, even when we are cross with him.
In many ways this story, apart from the mysteries involved, is a catalogue that points towards the emotional healing of Crispin. This more mature Crispin is a soothing balm.
I'm hoping for more resolution in this area in future works.

A Severn House ARC via NetGalley
Profile Image for Jannelies (living between hope and fear).
1,303 reviews189 followers
April 10, 2019
What a enjoyable character, this Crispin Guest! This was the first book I read in this series, but I had no trouble at all to get to know Crispin and his extended 'family'.
Sometimes it is hard for a modern human being to realize how utterly important written texts were in a time when only a very small part of the population could read and write.
Did Judas really write the book Crispin so unexpectedly receives? What are the consequences? Crispin has to use all his wits to try and take the right decisions.
A nice read with entertaining characters and good atmospheric details.

Thanks to NetGally for this digital copy.
Profile Image for Lorraine.
1,161 reviews87 followers
June 19, 2020
Doppelgängers?! In Jeri Westerson’s Traitor’s Codex (Crispin Guest#12), the protagonist, Crispin Guest, comes upon Crispin Guest while walking 1394 London with his apprentice, Jack Tucker. Earlier Crispin had been enjoying an ale in his favorite tavern, The Boar’s Tusk, when a covered ‘bundle’ is placed on his table while he hears “You’ll know what to do”. Being a curious person, Crispin unwraps the ‘bundle’ and sees “an ancient leather-bound book written in an unrecognizable language”. Imagine Crispin saying to himself “Here we go again”. Crispin returns home to discuss ‘this book’ with Jack, and as he opens the door, he sees Jack and his family involved in feeding their two children while Isabel awaits their next child. In this 12th book of these noir medieval mysteries, the author includes characters from previous mysteries such as John of Gaunt, son of Edward III and former mentor of Crispin, his mistress, Lady Katherine Swynford, Bishop Becke, Philippa Walecote, Crispin’s true lady love, and her son, and King Richard II. That is fun. At least it is for this reader. Even a visit from a living saint, Julien of Norwich, and all in two days! It has been 17 years since Crispin was declared a traitor, stripped of his knighthood, and his wealth, and thrown out onto London’s streets with just the clothes he was wearing, but Crispin never lost his belief in his honor.
He became known as The Tracker as he ‘found’ things - all religious objects in some way. The author in this book has Crispin ‘mending fences’ and feeling better about himself. I like that plus this mystery had excitement, twists, and turns on every page. I believe Crispin is even confused! I feel an end coming to this series, but until it does, I will enjoy reading about, Crispin Guest, disgraced knight, but now the well-known Tracker of London. 5 stars!
Profile Image for Laura Ruetz.
1,380 reviews72 followers
May 23, 2019
This is another solid book in the Crispin Guest series. I have been a fan of these from the beginning, and really enjoy the author's writing style. Crispin is a disgraced knight in medieval London, earning a living as a tracker, who solves crimes along with Jack Tucker. Jeri has written dynamic characters with Crispin and Jack, and I have watched them evolve and grow with each book. She has filled the book with the small details that bring the setting to life, and the people as well. From small mannerisms, to how and what they say, we get a full picture of the people and the places in the book.

It's an easy-going writing style, that is easy to read and it feels like you are revisiting an old familiar friend with each new book. The characters never fall flat, nor do they feel stagnant as each book sees change and growth. This is what makes this such an engaging series for me.

The mystery at the heart of this book is an old book that Crispin finds himself in possession of. The book is so dangerous that the people he speaks to while trying to learn about the book are all killed. The story is full of tension, and twists. The plot and subplots all work together and this is an engaging read. You won't want to put it down.
Profile Image for Helen Hollick.
Author 59 books526 followers
August 22, 2019
This book has received a Discovering Diamonds Review:
Helen Hollick
founder #DDRevs

"Throughout this novel, themes of loyalty oaths taken, and re-evaluating what we thought we knew take the lead. Crispin and Jack both are forced to closely analyze the things they had always taken for, well, gospel truth."
Profile Image for Joyce.
1,830 reviews40 followers
April 16, 2019
4 stars

Into Crispin Guest's hands falls a very old book, recently re-covered but the pages are written on papyrus. It is the Gospel of Judas Iscariot. It challenges and contradicts (in some ways) the current understanding of Christianity. Crispin suspects that he should destroy the book, but it does not belong to him – and he loves books. What to do?

It is a time of religious upheaval in England. The up and coming Protestants are rallying for followers amongst the citizenry – especially a group called the Lollards. The Catholic Church, and King Richard, are incensed at what they see as heresy.

When Crispin is attacked in the street, the tension in an already tense story ratchets up. Then a trail of murdered men follow in Crispin's wake. The people he spoke to about the book are being killed.

While traveling from place to place in search of the killers of his acquaintances, he and his apprentice Jack solve several and varied crimes. He is ushered into King Richard's presence and accused of a plot to murder Richard's queen. He gets away on the strength of his past friendship with the king. Crispin is finally pressured into promising to turn the book over to a nefarious Bishop. Will he go through with it? Will he sove the mysterious identity of the man who gave him the book? Will he and Jack get out of this sticky situation alive?

This book is very well written in Jeri Westerson's usual style. The premise is most interesting, especially given the era in which it is set. While perhaps not so controversial in today's world, it was virtually explosive and heretical back then. Anyone caught in possession of such a book could be burned at the stake. The novel is written in a casual easy-to-read linear style. I enjoy these Crispin Guest novels. Not only are they exciting, but they give the reader a glimpse into life – both the wealthy and the poor – in England at the time. I am awaiting the release of the next Crispin novel.

I want to thank NetGalley and Severn House/Severn House Publishers for forwarding to me a copy of this great book for me to read, enjoy and review.
Profile Image for L.S..
769 reviews29 followers
May 29, 2019
Wow! Is that not the most intriguing blurb ever? That, and the very gorgeous cover, drew me in. And, it didn't even matter that this was the twelfth book in a series, which just proves the quality of the writing.

The story takes place, for the most part, in late 14th century London. Crispin Guest, a former knight is now living in The Shambles with his apprentice Jack Tucker and Jack's young family.

In his role as a tracker now (a detective in modern parlance), Crispin is used to handling odd cases, but not of the sort that is dropped on his table in the Boar's Tusk Tavern. He takes the mysterious parcel home and unwraps it to find an old book written in a language he cannot decipher.

He seeks out those he hopes can identify the book and its language, and while he succeeds in that, the repercussions for those who aid him are fatal. Now he knows the book is a missing Gospel - the Judas Gospel - and one which the Catholic Church deems as "dangerous" and therefore must be destroyed. There are those amongst the shadows who wish to relieve him of the book, but they have seriously underestimated Crispin if they believe he will simply hand it over.

As Crispin endeavours to keep the book safe, in the hope of returning it to its rightful owner, other events - besides those intent on doing him harm if he holds on to the book - distract him. The three men who helped him out earlier are murdered, there's an impostor posing as him and putting his reputation at risk, and he is drawn back into the court of King Richard II when the Queen dies. Having been banished years before, this move puts his life in danger but he cannot stay away.

With all this going on, the author still adds depth to Crispin's life outside of his job. Firstly, with details of his lost love and the young son he cannot acknowledge, then with an insight into his past life at court and his bond with Lancaster, and finally with his acceptance of his current status and the role that Jack and his family play in bringing him peace and joy despite his less affluent lifestyle.

This story comes across as atmospheric and authentic in its historical setting, and compelling and intriguing as a mystery. Despite there being much of Crispin's past that has been dealt with in previous books of the series, this can be read easily as a standalone story. That said, I am sorely tempted to delve into earlier books and learn more of Crispin's fascinating history.

A very different kind of mystery, both enchanting and tense with wonderful, lively characters and a hefty dose of medieval history and setting.
1 review
June 1, 2019
Jeri has the best character development of any author ever. Never static, always growing, unexpected maturing that so resembles real life. The characters make you feel good about yourself and others in your life as you see life reflected in the many years of mistakes and bad choices of Crispin. As he and those around him age and experience life you realize that not everything appears as it once did. Age and experience may not change circumstances but certainly changes one’s outlook and perspective and life can be viewed in what you have accomplished and not what you have!
18 reviews
May 30, 2019
I've been reading this series since I stumbled on the 1st book years ago when cataloging at a library. And like all the others it is great. Love the series and seeing how the characters are developing. I already can't wait form the next one!
1,217 reviews30 followers
April 26, 2019
The release of a new book in the Crispin Guest series is cause for celebration in my home. I know that once I sit down with the book, I will have time for little else until I have read the last page.

As Crispin sits in a tavern with his ale, he is approached by a stranger who hands him a package, requesting that he not open it until he is alone. The package contains a book in a language that neither Crispin nor his apprentice Jack Tucker can decipher. When he consults a bookseller he is referred to a scholar and finally to a rabbi who identifies the language as Coptic. A translation reveals that it is the Judas Gospel. Ther are those in the church who will do whatever it takes to see this codex destroyed.. Crispin is half tempted to burn it, but the book was entrusted to his care until it can be passed to its’ proper owner.

John of Gaunt, the Duke of Lancaster who raised Crispin, also asks for his help. Queen Anne has died suddenly and he needs Crispin to determine if it was a natural death or murder. Once a knight who was accused with treason and banned from court, his return to Westminster palace could mean his death if he is discovered. There is also an impostor who has been using his identity as the Tracker of London. The man is staging rescues and extorting large fees for his services. Crispin is a man of honor and the impostor must be stopped. When someone begins killing people connected to the codex, Crispin sends Jack’s wife and children into hiding for their protection. While his time has been divided between his investigations, his priority is family and finding a solution for th fat of the codex to keep them safe.

Jeri Westerson makes London in the 1300s come alive. As Crispin travels the alleys of the Shambles and the corridors of Westminster Palace she evokes the sights and sounds of old London. This is an example of historical fiction at its best.

I would like to thank NetGalley and Severn House Publishers for providing this book for my review.
172 reviews
March 16, 2019
Murder in late 14th century London and environs. A strong story of political and religious intrigue and strife. Crispin Guest, the 'tracker' and a medieval detective of sorts, is given an old book which he determines is a missing Gospel. and one which 'needs' to be destroyed by the Catholic Church - the religion of the time. Lollards are quietly everywhere, people who challenge the Church's dominance and essentially start the move towards forming the Church of England. His journey of finding what the gospel says is followed by murder and he is sucked back into the politics of King Richard II and his court, and from which he was clearly banished some time ago. The Queen dies and the tracker has to content with determining whether a natural death or by poison too. He receives a visit from the anchoress Julian of Norwich which feels a little odd as Norwich is a long way from London and anchoresses typically spent their whole lives in small cells, some purportedly being bricked up in them, at their request! He is abducted and beaten up by Bishop Becke who is very clear that the book should be burned and, equally clearly, they have "a past". He now lives with Jack and his family and that relationship works well too - they also obviously have a history, but a good one this time. I think, to get the best from this book, it would be as well to have read others in the series. Whilst there is some backstory, there are gaps which detract from this book. Having said that it is a good read and more back story would probably add too much complexity to the multiple threads, and even stories, in this one. The characters feel real and the context is definitely excellent. I shall happily go and look for the other books with these characters.

My thanks to NetGalley and Severn House Publishers for an advance copy in return for my honest review.
Profile Image for Kevin.
9 reviews
April 22, 2019
Fantastic Mind Candy

I don’t recall how I first encountered Westerson’s first Crispin Guest novel, but it was very soon after it was placed on Amazon. Since then I have eagerly awaited each new release, and devoured immediately. This story is similar to the other’s yet interestingly different. If you enjoyed her previous novels, this one is equally entertaining.
5 reviews
February 20, 2019
I have been a fan of the Crispin Guest series since the first book, and the latest entry, Traitor’s Codex, doesn’t disappoint. Jeri just keeps getting better: her characters are well developed, her plot lines are well thought out and keep you guessing, and the historical details are tremendously interesting (without feeling like a dry history book.). The main characters, Crispin and Jack aren’t stagnant, but have grown throughout the series. In Traitor’s Codex, I loved seeing Crispin more at peace with his life, and enjoyed the changes in his relationship with Jack, as Jack has become a man with children of his own. The poignant time that Crispin spent with his old mentor, John of Gaunt was wonderful, as was his evolving relationship with Christopher Walcote. Crispin just can’t escape the holy relics that sometimes fall into his hands, and this case involves a doozy of a relic and the mystery behind it. If you follow this series, you will love Traitor’s Codex. If you like historical fiction and haven’t discovered Crispin Guest - jump on board. You’ll love the ride.
Profile Image for Jacqueline Diamond.
Author 246 books173 followers
February 7, 2019
Intriguing and complex mystery

It’s 1394 and Richard II sits uneasily on the throne. Disgraced knight turned tracker—what today would be termed a detective—Crispin Guest is handed an ancient book or codex by a stranger and told that he’ll know what to do with it.

His efforts to get it translated lead to both success and tragedy, as someone appears to be trailing him in an attempt to destroy the mysterious document. No wonder, since Crispin discovers it could pose a threat to orthodox church doctrine.

Westerson creates a believable world combining real and fictional characters. At its center, Crispin stands out as a fascinating character.

This is the eleventh book in the Crispin Guest Medieval Noir series, so there’s a fair amount of back story to absorb. However, the result is an emotionally satisfying read that should appeal to fans of historical mysteries.

Note: I received an Advance Reading Copy of this book.
153 reviews
April 17, 2019
Growing and changing series

I like this series and I am happy that the author left out some of the violence so much in the previous books. I am happy Crispin is happier! I am also pleased with the mystical Parts of the stories.
Profile Image for AnnaReads.
478 reviews2 followers
March 22, 2019
When I started reading Traitor's Codex by Jeri Westerson I had no idea this was a series and that this book is not the first one. But despite the many references to prevoius books I found myself enjoying the story. And now I will have to read the others to find out what happened to Crispin Guest to land him there.

I don't usually read historical fictions but the book's description seemed interesting. I love stories which centers on books.

I received a copy of this book from Severn House Publishers throug Netgalley. All opinions are my own.
Profile Image for Kristen.
804 reviews50 followers
July 15, 2019
My Blog | My Twitter

In 1394 London, Crispin Guest, self-styled Tracker of London, and his apprentice Jack Tucker are making ends meet with small jobs here and there. But their world gets turned upside down when a mysterious man drops a package in Crispin’s lap and disappears. Inside is a book written in a language Crispin has never seen. Making use of his varied contacts throughout the city, he learns that the book is written in Coptic and contains a secret gospel, the Gospel of Judas, which claims that Judas was the most beloved apostle and that salvation can come from within a person, not through Christ’s sacrifice. Knowledge of this gospel would overturn the Church’s authority and lead to a dangerous heresy, something even sceptical Crispin isn’t willing to allow. When people who have helped him start getting murdered, Crispin finds himself in the middle of a race to get the book to a safe place. In the meanwhile, someone in London is impersonating Crispin and wreaking havoc on his reputation…

Throughout this novel, themes of loyalty, oaths taken, and reevaluating what we thought we knew take the lead. Crispin and Jack both are forced to closely analyze the things they had always taken for, well, gospel truth, and both come away from their adventure changed in some fundamental ways. I think it was a good, if hard, lesson for Crispin to learn that Jews are people who have a great deal to contribute to his society and he realises he was not very good to them, or not as good as he could have been, only after two of his Jewish friends are killed.

The subplot with Crispin’s copycat were amusing, and the way he handled it was very inventive. I liked how it came full circle in the end and Crispin used the man the way he did. It made that subplot more meaningful, rather than just a nuisance to Crispin that had no other purpose.

The concept of loyalty also comes into play a lot throughout this novel. It was good to see Crispin evaluating his past role in the rebellion to place John of Gaunt on the throne and to understand the impact it had on others in ways he had never considered. Assessing one’s own thoughts and actions is an indication of a well-rounded adult and Crispin has really learned a lot about himself throughout the novels, and in this one especially.

I am looking forward to the next book in the series with both excitement and bittersweetness, knowing it will be one of the last. But also - Excalibur! YES! I am also really, really curious to see how Crispin’s tale will end. I know *I* have my own ideas and hopes for how it will end and what will become of Crispin, Jack, and the rest. But it will be interesting to see if any of those align with Westerson’s plan for our favorite intrepid, disgraced knight.

Favorite parts (potential spoilers!):
- The bookseller's excitement over his books, especially the Launcelot book that was written in London but which he got in the Holy Land. Book nerds from the Middle Ages geeking out about their books is absolutely something I want more of in everything I read!

- When Julian of Norwich comes to visit. I loved the nod to her writing when Julian refers to Mother Jesus, and later her most famous quote: All shall be well, and all shall be well, and all manner of thing shall be well.. As a medievalist who focuses on the writings of holy women, including Julian, I dig it when someone makes us if them in their own work. Also, the author’s note explains why Julian was in London and not in her cell, which is where she actually would have been, and does so in a way that is believable within the scope of the novel. Nicely done, my lady Westerson!
2,102 reviews38 followers
June 24, 2020
(Frantically found and gratefully downloaded FREE from ebookhunter.ch)

London 1394 ~ this one made me think of 'Blessed are those who Doubt and yet still Believe' paraphrasing John's Gospel regarding Thomas. A man who met another Englishman in the Holy Land, the latter intent on going home to England, entrusted a gift to Crispin Guest... the unknown messenger did so when he saw Guest at the Boar's Tusk then left having fulfilled his task. At home, Guest opened the mysterious package and beheld a book with writings both Trackers could not read. The Gift Giver knew well that Guest's insatiable curiosity would lead him to find someone who could translate the book's contents... he did not foresee the murders and the religious zealotry that followed in its wake. About this time, the Queen died and the Duke of Lancaster wanted Guest to investigate whether she died of her ailment or was murdered, due to the presence of a parchment on her bedchamber implicating the Lollards. The grieving King discovered Guest after he Royally asked his Uncle to leave his 'man' with him as he kept vigil. After his Royal Anger subsided, they talked and the King revealed that he was deeply hurt by Guest's treason since he also loved him as his cousin Henry did and would have found a way to let him live and thus welcomed the Duke's intervention. For it did not occur to Guest to kill the King in committing treason and was appalled when confronted with the hitherto inconceivable fact. Both men had better understanding of the other though Guest was still 'persona non grata' to keep up appearances. Guest's Palace probings soon revealed that the Queen did not die of poison.

The book was translated by a Jewish barber who was also a rabbi. It was in Coptic, a language used by the early Christians, and it was written by Judas Iscariot and revealed what transpired between him and Jesus before His arrest and that such an event was planned between them... it was heretical in the sense that Salvation did not need Baptism and Christ's death on the cross (thus, His Resurrection was also superfluous), it only needed the person's personal convictions. This book must be read so the entire picture would be complete (for it also mentioned the 'arbitrary decision' of the Council of Nicaea as to whose and what gospels to include in the New Testament). This would also be responsible in resolving the emotional events that led to Guest's banishment and to a deeper bond between Guest's and the people in his former life as a courtier... the easement of that burden had also relieved his bitter regrets and had made him more accepting of his present life as a member of the lower orders though such Reality started to really dawn on him in the previous book where his 'misguided in chivalry' 7~year ~old son confessed to a murder he did not commit... and where he began to regret not offering marriage to a beloved scullion.
Profile Image for John Purvis.
1,352 reviews23 followers
December 16, 2019
(See all of my Book Reviews) - "Traitor's Codex" eBook was published in 2019 and was written by Jeri Westerson (http://www.jeriwesterson.com). Mr. Westerson has published nearly 30 novels. This is the 12th of his “Crispin Guest Mysteries”.

I received an ARC of this novel through https://www.netgalley.com in return for a fair and honest review. I categorize this novel as ‘R’ because it contains scenes of Violence. The story is set in late 14th century England. The primary character is Crispin Guest. Guest had once been a Knight, but because of his involvement in a plot against King Richard II, he has been convicted of treason, his property seized, and his titles stripped from him. 

Now with no title, property or former friends, Guest makes a meager living on the streets of London using his experience and intelligence. He is a Tracker - what we would call a Private Investigator. He is handed a package one day by a stranger. When Guest later unwraps it he finds a strange and ancient manuscript. A lost Gospel of Judas. 

As he begins to investigate the package, those that he comes into contact with are targeted. There are powerful men who want to see the manuscript taken from him and destroyed. They want no knowledge of the manuscript to leak out and they will stop at nothing to accomplish their goals. 

I thoroughly enjoyed the 6.5 hours I spent reading this 224-page historical mystery. I liked the premise and the characters created in this novel. I wish I had read some of the others in the series, but I found that this read well as a stand-alone novel. I like the cover art that was chosen. I give this novel a 5 out of 5.

Further book reviews I have written can be accessed at https://johnpurvis.wordpress.com/blog/.
Profile Image for Jen.
2,026 reviews67 followers
March 15, 2019
Another outing for Crispin Guest, The Tracker of London. In this adventure, Crispin is given a dangerous codex which threatens the dogma of the Church.

As usual, the depiction of the characters makes them believable, three-dimensional individuals. As Crispin has grown more accepting of his fall from grace, his character has evolved and his life has developed in positive ways. In Traitor's Codex, Crispin once again must confront Richard II with more understanding on the parts of both men.

Westerson's research is wide-ranging and thorough, weaving both real personages and fictional characters skillfully through a series of mysteries in which Crispin is engaged to solve various crimes.

Dame Julian of Norwich, the famous medieval anchorite and one of my favorite historical figures--"all shall be well, and all shall be well, and all manner of thing shall be well"--makes an appearance in the current mystery. Other historical figures who often appear include John of Gaunt and Chaucer--two more favorite historical characters.

Each book in this series, designated as Medieval Noir, presents an intriguing mystery with fascinating historical elements, and I have enjoyed them all.



Read in January; blog review scheduled for May 22.

NetGalley/Severn House
Historical Mystery/Medieval Noir. June 1, 2019. Print length: 224 pages.
Profile Image for Ileana Renfroe.
Author 44 books59 followers
October 13, 2021
Traitor's Codex is a great book. Although part of a series you might want to consider starting at the beginning. Overall, it was a great book to read and kept me intrigued until the very end.

In this book 7:
Crispin Guest, Tracker of London, is enjoying his ale in the Boar’s Tusk tavern – until a stranger leaves a mysterious wrapped bundle on his table, telling him, "You'll know what to do." Inside is an ancient leather-bound book written in an unrecognizable language. Accompanied by his apprentice, Jack Tucker, Crispin takes the unknown codex to a hidden rabbi, where they make a shocking discovery: it is the Gospel of Judas from the Holy Land, and its contents challenge the very doctrine of Christianity itself. Crispin is soon drawn into a deadly maze involving murder, living saints, and lethal henchmen. Why was he given the blasphemous book, and what should he do with it? A series of horrific events confirm his fears that there are powerful men who want it – and who will stop at nothing to see it destroyed.
Profile Image for Jennifer.
467 reviews4 followers
April 22, 2019
First of all, my thanks to Severn House and NetGalley, who provided a digital ARC in return for my honest opinion.

This is a very well written series, with great character development over the course of 12 titles. We've seen Crispin Guest go from an embittered, impoverished former knight, convicted of treason and yet miraculously NOT executed, to a man largely at peace with his place in the world. Crispin has formed a new family for himself, -- his apprentice, Jack, now a grown man with a wife and children of his own. In The Traitor's Codex, Crispin in once more in temporary possession of a religious object of sorts, the Gospel of Judas. England is in a time of religious upheaval, with a group called Lollards challenging the status quo of the established (Roman Catholic) church, and a possible "new" gospel, especially one contesting the teaching of the existing gospels, is a danger to those who come into contact with it. A very quick read with, to me at least, a satisfactory ending!
Profile Image for Rekha O'Sullivan.
1,482 reviews17 followers
March 25, 2020
I've read several of the books in the Crispin Guest series and I have to say I have enjoyed them all immensely. That said, this particular book, which centres around the discovery of a forgotten gospel landing in the hands of Guest, isn't as much of a page-turner as the others. The story itself is interesting but seems to take a back seat to the development of the characters - it's almost as if the author is setting the main cast up for something bigger in the next book. We'll have to wait for it to find out I suppose! Thanks to the publishers and Netgalley for an advanced copy of this book in exchange for an honest review. I give this installment of the series 3.5 stars.
Profile Image for Annarella.
14.2k reviews164 followers
June 10, 2019
I recently discovered the Tracker series and fell in love with it. This means I had high expectation and they were all met.
I love this historical mystery, its well written and fleshed out characters, the humour, and the well researched historical background.
The plot kept me hooked till the last page and the mystery was very good, full of twists and turns.
I look forward to reading the next installment in this series.
Highly recommended!
Many thanks to Severn House and Netgalley for this ARC, all opinions are mine.
441 reviews4 followers
October 1, 2019
I really like this series. Crispen is facing some hard facts of his life. Which can be distracting from his tracking skills. He deals with a doppelganger and teaches him that stealing someone identity is not a good thing. He deals with a zealot Bishop, Lollards and a man who murders and steal another mans identity. When the queen dies he answers the call of his mentor to find out if she was murdered. Which brings him to the eye of the king that spared his life. All this within 2 days! His life is very busy and I'm thankful it is not mine.
Profile Image for Rebecca Hill.
Author 1 book66 followers
October 3, 2020
What a great book! Jeri Westerson does a fabulous job of weaving this tale together, bringing readers on an adventure that is going to stay with them long after the book has finished.

Grab Traitor's Codex this weekend and dive into an adventure that will leave you breathless!

*I have not read the first 11 books in this series, but I think I might start at the beginning and work through, reading this one again at the end. There are some things that I feel would have made more sense if I had read the other books first.*
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