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Beyond darkness lies damnation. And beyond damnation… there is only delirium.

In a world gone mad, only the insane can rule.

Still reeling from the death of her beloved daughter, Detective Jamie Brooke needs time to grieve and to heal. What she gets is a call to murder and madness: a prominent psychiatrist has been tortured to death, and it’s up to her to uncover the people responsible, and stop them before they can kill again.

Turning to her friend, Blake Daniel — an antiquities expert cursed with the psychic ability to “see” the bloody histories of objects — Jamie begins an investigation that will take her to the most infamous asylum in history, and a place where insanity is born. A place where rules don’t apply, and where madness is the only law.

She has no idea what she’s getting into. Because Jamie doesn’t know the true history of Bedlam Asylum, the depraved experiments that went on there, or how it leads to the string of murders that could bring the country to its knees.

Worst of all, she doesn’t know about Blake’s connection to Bedlam, to the murders, and to the people willing to execute anyone who stands in their way. And Blake himself doesn’t know the full evil of his own past, or that his gift has put him in the sights of a group who want to use him as a guinea pig for their darkest experiments.

The answers are coming. But some answers bring only pain. Some answers bring only death.

And the worst answers of all bring only DELIRIUM.

The second installment in the thrilling Brooke and Daniel series, Delirium (by New York Times and USA Today bestselling author J.F. Penn) presents a chilling world where insanity is the only law, and madness the only way to survive.

252 pages, Paperback

First published July 18, 2014

42 people are currently reading
1036 people want to read

About the author

J.F. Penn

55 books2,239 followers
I'm the award-winning, New York Times and USA Today bestselling author of thrillers, crime, dark fantasy, horror, short stories, and travel memoir.

Reading order: https://jfpennbooks.com/pages/reading...

The fast-paced ARKANE thrillers weave together historical artifacts, global locations, a kick-ass protagonist and a hint of the supernatural. Described by readers as "Dan Brown meets Lara Croft."

The Brooke & Daniel Crime Thriller Series features British detective Jamie Brooke alongside museum researcher Blake Daniel, as they solve dark crimes around London.

The Mapwalker fantasy adventure trilogy is set between Bath, England and the Borderlands in a split world fantasy where Sienna and the Mapwalker team travel through maps to adventure ...

A Thousand Fiendish Angels is a collection of 3 short stories bound together by a book of human skin. Inspired by Dante's Inferno.

You can buy books directly from me https://jfpennbooks.com/

I have a blog and podcast at http://www.BooksAndTravel.page

I'm passionate about writing and I love reading. My favorite authors include James Rollins, Jonathan Maberry, John Connolly, Daniel Silva, and I also read a lot of travel books.

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5 stars
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Displaying 1 - 30 of 52 reviews
Profile Image for Ami.
6,262 reviews489 followers
June 22, 2018
Second book of J.F. Penn's London Psychic series and it also made me thinking about mental illness, about the inhumane abuse (cloaked as treatment) that patients received. That is always a sign of a good book, when it's thought provoking. Heck, I cannot even really condemn the murderer in this one, considering what the victim has done.

There are two things happening here, in my opinion. We have Jamie dealing with the death of a doctor who has been connected to mental illness treatment, but there's also a larger conspiracy of how the government uses this research for their own purpose.

I am definitely intrigued to see how this ends -- especially with Jamie now . I also want to see the romantic possibility between Jamie and Blake is developed :)
Profile Image for Christine Myers.
19 reviews8 followers
August 6, 2015

***Contains minor spoilers from first book***






Returning to work after mourning the death of her daughter, Detective Jamie Brooke is riding the edge between life and waking death. The case she is first tasked with forces her to grapple with her demons as she investigates the murder of a psychiatrist and the corruption of the mental health system. As she discovers, the line between sanity and madness is blurry at best. While personally questioning what this means for her, the nature of police work slowly helps her regain her footing in the world. We also get to know Blake Daniel better, and delve into the supernatural and its connection to mental health. The pace of the story is perfect: each piece built upon the next and even though I never wanted to put it down, the plot never felt rushed. And just when I thought everything was wrapped up, a twist at the end dropped my jaw. Whatever will Jamie Brooke do next?
Profile Image for Elisabeth Zguta.
Author 12 books59 followers
June 19, 2015
Amazing intrigue! The reader is immediately at the edge of their seat in the opening scene, where we witness Dr. Christian Monro's physical and emotional trauma while being murdered. We are brought into the death scene, each agonizing step of the way. The detail and the pace are excellent. The suspense is high voltage.
The protagonist Detective Sergeant Jamie Brooke once again is challenged with high stakes. As in the first book of the series, Jamie is going through hell emotionally after the loss of her child, but she is also engaged in the case and wants to understand the true crime. The heroine strives to remain objective while gathering evidence, hoping to see the truth. Along the way many twists in the case elude her, and attempt to veer her from the true crime. She follows the leads and takes the reader down a road of unexpected horrors. Jamie is not faint of heart, but a woman who makes the tough decisions; she is the protector of her co-workers and friends. There is hope - as she is faced with danger even in her most fragile hours, yet somehow finds the strength to prevail.
The subject matter of this novel immediately jolts interest - the history of mental illness treatment and the reminder of abuse done to the mentally ill. This is a topic I too have strong feelings about, and so this story truly hit my heartstrings. The research was done well, as to be expected by this author who always delivers well developed background. This story is not for those wanting a light read, because the reader will be left with some concepts to think about - maybe even choices on how to view others who may not be as fortunate as most. In this world it is too easy to forget about those who suffer with mental illness. Society has swept them from public view, but we know in our heart that more needs to be addressed. I thank the author for writing this riveting story and bringing this topic to the forefront.
To date this is my favorite of J.F.Penn’s books. I truly enjoy reading about Jamie, and this is a great series. Delirium is for anyone who enjoys detective horror thrillers, and is a definite must read.
Profile Image for Toni Osborne.
1,609 reviews53 followers
December 27, 2015
Book 2, in the London Psychic # 2

This is an amazing book, a psycho- thriller with an edge of the supernatural and one that leaves us questioning whether we aren’t all a little mad in one way or the other.

The story is handled with aplomb and weaves and engaging tale not meant for the faint of heart. There are so many vivid descriptions of rotted bodies, gruesome scenes of torture, colourful visions of demons and many other shocking sightings. This is definitely one of those stories that plunges you into high voltage suspense as the drama moves in agonizing steps into death scenes and leaves you at the edge of your seat from the opening scene. Yakes gruesome…. step aside Marquis de Sade…..This novel immediately jolts interest and never lets go. Set all the horror aside, the plotting is wonderfully done to tease our mind and captivate us till the very last page.

“Delirium” has also a serious side: the history of mental illness treatment and the abuse of the mentally ill. It is evident that Ms. Penn has done intensive research into the illness and with excellence and with finesse she gave us this wonderful story. Religions, psychology, supernatural, the human mind and our attitudes to it are definitely Ms. Penn’s obsessions and expertise. We find strong characterisation both with the heroes and the villains. Returning are Detective Sergeant Jamie Brooke and her reluctant psychic Blake Daniel to help in the case and captivate us throughout the pages.

Although I received a copy from the author “This is the way I see it” and in no way was I influenced by the offer.
Profile Image for Icy Sedgwick.
Author 40 books127 followers
December 23, 2016
I've been fascinated by madness and the treatment of it for some time, so I was excited to see the follow up to Desecration was using Bedlam as a source point. Again, JF Penn descends into the darkness, leading us into the depths of human nature to expose our inherent flaws. The writing was as good as Desecration, and I was so engrossed I almost missed my train stop! Highly recommended.
Profile Image for Mark Tilbury.
Author 27 books279 followers
October 4, 2015
Delirium is the second book of the London Psychic series featuring Detective Sergeant Jamie Brook and reluctant psychic Blake Daniel. After events in the Hellfire caves in Desecration, Jamie needs Blake’s help with another case. This time in the old hospital of Bedlam where a psychiatrist has been murdered.

This book delves into the history of treatments given to people with mental illness and the medical profession’s opinions on people with psychic abilities. It is clear that it is an area that interests the author. She writes in-depth passages about treatments and they come across as compassionate to those being treated.

This book can be read as a standalone novel, but would be better read after Desecration so that you can better understand the developing relationship between Jamie and Blake, and what is causing Jamie to think and behave the way she does.

I thoroughly enjoyed the darkness of this book. The treatment of the mentally ill was (and can be) appalling, and whilst you can only imagine what it must have been like to be strapped into a tranquilizer chair, the author makes it so much easier for your mind to do so.

I also appreciated the personal note added by the author after the end of the story. I agree with her about how “there is a spectrum of madness in all of us, it’s just a matter of degree.”
Excellent.
1 review
July 28, 2014
Joanna Penn's latest thriller is Delirium,the second book in her London Mysteries Series, featuring Detective Sergent Jamie Brooke (at her most vulnerable) and her side-kick Blake Daniel, museum researcher by trade, with extrasensory visionary capacities (at his most desolate). Delirium continues to showcase Joanna's increasing talent for combining depth of research while probing the outer limits of the depravity of her villains as linchpins in developing her unique and fascinating characters. Her scholarly background at Oxford and her keen interest in shadow psychology never leads to dumping information on the reader, but rather serves to spark her plot along at an ever increasing pace. One gets drawn in from the first paragraph and the "bite" of the story never lets go. One ends the last page with a shout, "More, Joanna, more!" An added appeal of this novel is Joanna's inclusion of an appendix, revealing her own psychic demons she struggles with but which also serve as rich soil for her dark imagination. Even before I interviewed Joanna in the pages of Dream Network Journal I knew she was one writer I wanted permanently on my plate! Delirium is a great meal. Indulge yourself. Russell Lockhart, Ph.D. Author of Words As Eggs and Psyche Speaks
Profile Image for Eric Praschan.
Author 15 books15 followers
July 21, 2014
Desecration raised the bar for J.F. Penn’s thriller writing, and Delirium elevates it even higher. Her protagonist, Jamie Brooke, has an emotional resonance and genuine pathos that gives her a relatable quality. Jamie’s grief over the loss of her daughter, Polly, and her struggle to stay confident and in control of her work at the police force generates a stirring conflict as she delves into the macabre world of madness brought on by the bizarre murders in London. Jamie’s clairvoyant friend, Blake Daniel, must assist with the case while dealing with own demons and confronting the abuse from his father, a harrowing experience which leads him down a rabbit hole of his family history.

Penn weaves a wickedly riveting tale that deftly deals with the spectrum of madness in the human mind, specifically how humanity reacts to its own deviations from perceived “normality." With vivid settings, gruesome killings, and intense interpersonal conflicts, Penn serves up an unforgettable menu for the senses. Delirium explores the dark corners of the mind in fascinating fashion, and this reader can’t wait to see what other dark corners Jamie Brooke will be visiting next time…
1 review
July 27, 2014
From the opening scene in the book until the last sentence you are taken for a trip through the the mind. Detective Jamie Brooke has another case she solves with the help of Blake Daniel, a psychic from the first book, Desecration. Jamie and Blake once again team up, each bringing a unique talent to solve a series of murders in London. Each has their own issues and demons to resolve and yet through perseverance and persistence they are able to not only grapple with their own minds to solve the murders but also realize a connection to each other that excites me to read further adventures as Penn writes them. Penn has the ability to take the reader into the dark corner of the mind and examines the way society, and ourselves, interprets mental illness and insanity. I have enjoyed her writing immensely and look forward to more.
Profile Image for A.M..
Author 7 books57 followers
April 29, 2018
Madness is judged by degrees. At what line does grief tip into depression? When does depression become Depression? How do these things work in families? Can genetics have a place in mental health?
Jamie is still deep in mourning for her daughter. Blake sends her cute photos every day but is keeping his distance.
Bedlam is now a museum but returns to it’s ghosts of the past when the body of a prominent psychiatrist is found there. Searching his office reveals a shadow clinic where he treats patients with drugs, pain and sex. They consent to this, but what about patients who don’t or can’t give full consent?
An up and coming Member of Parliament, Matthew Osborne, is campaigning for changes to mental health after the death of his sister. He is particularly against a secret government department that experiments on the mentally ill. He wants RAIN exposed and shut down.
Meanwhile, Blake learns that his father is dying and wants to see him.
Osborne’s sister Lyssa was an artist but her art illustrated her ‘treatment’.
As more bodies pile up and incidents of public madness rise, the question is: is it RAIN or someone else?
***
As the author points out, we all have moments or life circumstances that push us close to the edges. And it makes sense that the military and the government may want to investigate this. Penn calls her group RAIN.
Research into Advanced Intelligence Network (RAIN) is based on the Intelligence Advanced Research Projects Agency (IARPA). This real American agency "invests in high-risk, high-payoff research programs that have the potential to provide the United States with an overwhelming intelligence advantage over future adversaries." I'm sure the British must have an equivalent!
Author’s note

I’d bet money on it, too.
I remember seeing a Tumblr post about madness and creativity. The original poster argued that Van Gogh wouldn’t have made art if he’d been on medication and they got soundly roasted for it. He made MORE art when he was happy and well-balanced.
There’s a lot of politics here; naturally, these are big issues.
"People forget that it was the Americans in the 1920s who started the enforced sterilization of the mentally ill based on the assumption of bad breeding. Hitler only followed their example, targeting the mentally ill before the Jews or gypsies. The mad were the first to be slaughtered, and there is still considerable prejudice against them. It wouldn't take much to tip people back into the old ways of thinking. I have my suspicions that Monro wasn't too far from those thoughts."

And
Jamie couldn't see how a civilized country like Britain would ever allow the death penalty when it condemned countries like China, Iran and Pakistan, while at the same time turning a blind eye to the United States.

There’s also a lot of graphic descriptions.
I did find myself skipping parts, but it’s a short read and it leaves plenty of room for the sequel.

Weird thing: Using ‘for’ as a linking word is a style thing with Joanna and once I’ve noticed it, I can’t unsee it.
He had to leave her, for there had been no other way. (p. 275).

It’s everywhere…
3 stars
Profile Image for Stephen Clynes.
664 reviews40 followers
January 21, 2024
Detective Jamie Brooke is called to investigate when a prominent psychiatrist has been tortured to death.

Although this is book 2 in the Brooke and Daniel series, I feel this story can be read as a stand-alone.

Delirium is concerned not only with the criminal investigation into the psychiatrist’s death but with many issues surrounding mental health and madness. Because as Joanna writes “There is a spectrum of madness in all of us, it’s just a matter of degree.”

As with Joanna’s other books, she has done tonnes of research and I love all the extra bits of information that are thrown into her story. The treatment of mental health through history is fully explored and makes for alarming reading.

I found the plot okay but not as interesting as in Desecration, the first book in this Brooke and Daniel series. The thought provoking questions about mental health and how diverse our society is made up far outweighed the value of the regular police procedural parts of this novel. I think Delirium is a GOOD 4 star read, unlike Desecration which I gave the top score of 5 stars.
Profile Image for Zoe Langley-Wathen.
57 reviews
November 21, 2023
Not my usual genre, but having listened to J.F.Penn on her podcast, The Creative Penn for a few years, I decided to give this boxed set a go. Delirium is the second in the London Crime Thrillers trilogy and did not disappoint. It can be read as a stand alone novel, though I'd recommend reading Desecration first. As I listened on audio book, Delirium often stopped me in my tracks as I fought with the multi-tasking of cooking and experiencing the shock of each chaper twist. There were moments I could only focus on the book as it gripped my attention. Both daring and liberating in the narrative, my reader's connection with the protagonist, detective Jamie Brooke is well and truly established. Diving straight into Book Three - Deviance.
Profile Image for Permittivité du Vide.
73 reviews1 follower
February 16, 2020
Delirium being a second book in a series is not a good enough reason to keep pulling the reader away from the story unfolding in this installment.

A character remembering something and going down memory lane, over-describing anything from the color of things to a character’s expression, and a strange manner of speaking that I personally have never encountered in real life- all of these made me forget I was promised dead bodies and madness.


I received this book from Goodreads/librarything (can’t figure which) through their respective giveaway programs.
679 reviews5 followers
August 22, 2024
Detective Sergeant Jamie thought coming back to work three months after the death of her daughter, would give her new direction in life. Instead she got to investigate another gruesome murder. This time the plot revolves around the treatment of mad people (as in psycho or crazy).
And with that assignment it is indeed as if an ascent into madness and horror...again.
Author J.F.Penn certainly knows how to keep your neck hair rising every few minutes in sheer horror as the plot unfolds and Jamie as well as Blake becomes the targets in an insidious plot where their lives aren't worth a dime.
Profile Image for Debbie.
850 reviews9 followers
March 30, 2025
Detective Jamie Brooke is still grieving the loss of her daughter when she is called to investigate the murder of a prominent psychiatrist. The case leads her to Bedlam Asylum, a place with a dark history of madness and experiments. Jamie teams up with Blake Daniel, a psychic antiquities expert, to uncover the truth behind the murders and the asylum's secrets. The story delves into themes of grief, insanity, and the supernatural, creating a chilling and suspenseful narrative. It's a gripping psychological thriller that explores the depths of human nature and the spectrum of madness.
Profile Image for Susan.
7,312 reviews69 followers
September 14, 2019
D.S. Jamie Brooke and D.C. Alan Missinghall are brought in to investigate the death of a prominent psychiatrist who has been found in the old hospital of Bedlam. Her investigation leads her to the subject of madness and its definition and cause. Meanwhile her friend and psychic Blake Daniel has his own personal issues to deal with. Then there is another murder.
An enjoyable and interesting mystery
320 reviews2 followers
November 1, 2020
Although I received the book for free from JF Penn, the thoughts expressed here are my own. Excellent psychological thriller. Jamie and Blake are, once again, chasing a killer that takes them through a vortex of situations, from mental institutions to the British Parlament. All this while Blake's father dies, then Blake is kidnapped - also, the killer has a nasty surprise for members of Parliament. Plenty of action and surprises.
Profile Image for Ronel Janse van Vuuren.
Author 68 books55 followers
April 14, 2022
I enjoyed the history of mental illness and how it was viewed and treated through time and how it is perceived today. An excellent theme, not just the main storyline, of how people treat the Other.

I do think the vigilante (or murderer, if you prefer) could have gone after bigger fish, like the main psycho experimenting on the mentally different.

I can’t wait to see what Jamie does next. A dark thriller with interesting themes and questions about morality.
1,099 reviews24 followers
January 26, 2021
Again, solid 3.
I admire the author's ability to produce. Like, she is seriously prolific. The only thing is, the editing suffers. This could definitely use another go over with a red pen. There are some descriptions, like "patrician," which are overused, and instances of phrasing that just feels awkward (like, a brotherly hug from a brother, that sort of thing).
It seems like there's a running theme of medical ethics and the rights of people with disabilities, physical in the first book, and mental illness in this one. It all plays out in a decidedly entertaining, melodramatic (and rather heavy handed) way, but it still starts a conversation, and I appreciate that.
It was fun. The gruesome scenes were inventive. For a book I got in a three pack for an Audible credit, I can't complain.
Except about the narrator. She's not my favorite.
Profile Image for Jared Austin.
Author 4 books6 followers
October 28, 2024
Another great book by J.F. Penn. Really enjoyed watching Jamie keep fighting after losing her daughter. The bad guy's actions horrify you, but at the same time you can understand his motivations even as you want him to get stopped. Well done and looking forward to book 3 to see how Jamie and Daniel wrap up their story.
Profile Image for mark fowler.
187 reviews1 follower
April 1, 2022
Really enjoyed it

Another great book and read over two days .1 suggestion I have dear reader is you don't want to be having good when reading this as can be quite gorey in places lol.
Profile Image for Audrey.
1,087 reviews9 followers
September 12, 2023
Gets quite graphic

And interesting tale. Doesn’t always hang together, but still an interesting read. Parts of the story gets very graphic. One needs a strong stomach. Worth a read.
Profile Image for Helen.
545 reviews4 followers
October 15, 2025
Good Thriller

I didn't think this book was quite as good as the first one. However, it's still fast-paced and a gripping storyline that deals with mental health and attitudes towards it.
Profile Image for Lisa Harris-Deans.
17 reviews
January 31, 2018
Even better than the first - Desecration

A gripping read. I have grown fond of the key characters and can't wait to read the next one in the series.
Profile Image for Sherry Briscoe.
Author 30 books27 followers
October 4, 2018
Penn knows how to write a top notch thriller and keep you on the edge of your seat. Whew! It's so intense you have to walk away from it and catch your breath.
Profile Image for S D Lawrie.
487 reviews3 followers
February 7, 2019
As good as the first novel, kept me entertained to the end and the ending is such that I have to read the third.
Profile Image for Debbie Lawrie.
484 reviews2 followers
May 3, 2019
Another absorbing read. This gets to grips with psychology which is right up my alley.
I love the main character's characterization.
6 reviews2 followers
September 3, 2019
Sent chills down my spine, but loved every minute of it!
230 reviews1 follower
May 31, 2020
Very Good !!

I enjoy Ms Penn's story line, and her characters. I also want to feel the story. With this book, I felt sorrow, empathy, anger, and hope. Good job!
Displaying 1 - 30 of 52 reviews

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