Charlotte Holmes—aka Sherlock Holmes—becomes entangled in a puzzling missing person case that hits close to home for her beloved Mrs. Watson in this Victorian-set mystery from the USA Today bestselling author of A Ruse of Shadows.
It’s been three years since Charlotte Holmes struck a decisive blow against Moriarty's operations in Britain, three years of relative calm and benign developments. In a buoyant mood, everyone gathers at Lord Ingram's seaside cottage in North Devon for what promises to be a perfect summer holiday. Until Mrs. Watson receives an invitation from Mrs. Carstairs, her long-estranged sister, to attend a house party nearby.
Mrs. Carstairs has married spectacularly well. She is the mistress of a great manor, a doyen of all domestic arts, and still an unforgettable beauty. Now she clamors for a reconciliation with her sister. Mrs. Watson does not trust Mrs. Carstairs's motives. Yet she cannot help but feel tremors of the old admiration for this once-beloved sister.
Then Mrs. Carstairs disappears without a trace. The next day a woman is discovered floating on the waves, her build and coloring matching those of Mrs. Carstairs. But her husband insists that the corpse fished out of the Bristol Channel cannot be his wife. So where is the real Mrs. Carstairs? Would she have purposely dragged Mrs. Watson into a murder investigation? Or was it Sherlock Holmes's involvement that she needed from the very beginning?
USA Today-bestselling author Sherry Thomas decided years ago that her goal in life is to write every kind of book she enjoys reading. Thus far she has published romance, fantasy, mystery, young adult, and three books inspired by the martial arts epics she grew up devouring. Her books regularly receive starred reviews and best-of-the-year honors from trade publications, including such outlets as the New York Times and National Public Radio.
A Study in Scarlet Women, A Conspiracy in Belgravia, and The Hollow of Fear, the first three entries in her gender-bending Lady Sherlock historical mystery series, are all NPR best books of the year. The Magnolia Sword, her 2019 release, is the first young adult retelling of the original Ballad of Mulan in the English language.
Sherry emigrated from China at age 13 and English is her second language.
“Sherry Thomas has done the impossible and crafted a fresh, exciting new version of Sherlock Holmes. From the carefully plotted twists to the elegant turns of phrase, A Study in Scarlet Women is a splendid addition to Holmes’s world. This book is everything I hoped it would be, and the next adventure cannot come too soon!” —Deanna Raybourn, New York Times bestselling author
“Thomas weaves a lush, intricate fantasy world around a gorgeous romance that kept me riveted until the very last page. What a breathtaking journey!” (Marie Lu, New York Times bestselling author of the Legend series )
"Sherry Thomas is the most powerfully original historical romance author writing today."—Lisa Kleypas, New York Times bestselling author
Lady Sherlock #9 The Vanished Sister by Sherry Thomas
Having read all the previous Lady Sherlock books in the series, I'm always happy when a new book becomes available. Characters move along with the series, whether we hear of them in the background or they make an appearance in the most recent story. Things have been going well for Charlotte Holmes and her lover, Ash, and they are always my favorite characters of these stories, but in this latest installation, Mrs. Watson and her family are the featured players.
Mrs. Watson has had a wild and varied past, although her sister, the current Mrs. Carstairs, expected that Mrs. Watson to pave a much different path for their lives back when they were younger. Mrs. Carstairs envisioned the women working very hard to earn enough money to buy an old inn, renovate it, and then the two of them would spend the rest of their lives running that inn. Appalled at such a future, Mrs. Watson wanted adventure and fun in her life and even if her life was actually filled with deeds and misdeeds often looked down upon, Mrs. Watson is happy where she has landed in her later years.
Thank goodness the book opens with a long list of characters and descriptions because even as a big fan of this series, never missing a book, I need the reminder of all the people who are a part of the world of Charlotte Holmes. In this book, Mrs. Watson gets in invitation from her long estranged sister, Mrs. Carstairs, and as much as Mrs. Watson has hated their estrangement, she does not trust the reason for the invitation from this sister she has adored so much in the past.
Mrs. Carstairs has done well with her various marriages that each ended in widowhood. When Mrs. Carstairs goes missing, Mrs. Watson has the best connections a person could have to find out what is going on. And let me tell you, a heap of shady things have gone on, are still going on, and might be going on in the future. Good thing we have Sherlock and company to make heads and tails of everything and they are so very kind to fill us in on the details because, as with all these Sherlock stories, I'd still be sitting in the pub at the end of each book, scratching my head, and having made no headway with each mystery. Now I look forward to the next adventures of these characters.
Pub September 29, 2026
Thank you to Berkley Publishing Group | Berkley and NetGalley for this ARC
This book focuses on Mrs Watson and her youth and sister. The book was a bit slow to start for me. There is a thread of regret from Mrs Watson that is woven throughout the storyline. Looking back not with fondness but at the foolishness of youth. Justina when young seemed to have a plan and a path for her and for Joanna (Mrs Watson). When the sisters meet again there is a rigidness and lack of feeling in her sister and husband. There is a change in Justina and her actions that I could not understand. I found myself enjoying the writing but not invested in the mystery. Charlotte and Ash are VERY secondary in the book as it is mainly centered around Joanna and Justina. There is no solving the mystery as the reader knows little of the facts till the reveal at the end. I found myself dissatisfied with the ending and there are way too many characters.
How I adore this series, these characters, the mysteries, the setting, the writing, just really, everything.
It has grown so much. The characters have grown so much, but so has the writing. It didn't take long for this series to become a favorite, and with each new story, each new installation, I am reminded all over again why I love it so much.
I can't even tell you how much I loved this. How eager I was to start it. I wanted to both devour it and make it last forever. It has been way too long since I have been in this world, and I just couldn't get enough of it.
This one was just so much more. So many more feelings, so many more secrets and revelations. So much sadness, but so much happiness as well.
Truly a stand out novel, a stand out series, and one I will praise and recommend over and over again,.
*ARC provided by the publisher in exchange for an honest review.*
We hereby call this meeting of the Lord Ingram Appreciation Society to order! The ninth book in the Lady Sherlock series starts with a 3-year time jump from the last book. It nearly feels like a happy couples HEA epilogue... except, of course, that there's a murder that Charlotte & Co. are tasked with solving.
This book is Joanne Watson forward: Mrs. Watson is invited to a house party by her estranged sister. In fact, she's been bribed to attend. But why this party, and why now? When Jo's sister disappears and a mutilated dead body is discovered, it seems like it could have been a good-bye visit. When it turns out that the body isn't her sister's, the Holmes cadre (all Charlotte, but including Sherlock and Sherrinford) jumps into action, and soon learns that the death is related to the disappearance...
We've been hoping for a non-Moriarty book for ages, but now that we got one, we kind of missed the urgency Moriarty brings to the overarching series plot. The mystery here is extremely convoluted and involves over a dozen new characters who can be hard to remember. It will keep you on your toes, but all of the plot threads converge in the end, in the best Lady Sherlock fashion. The theme of women pushing back against the constraints of Victorian society (in productive and destructive ways) also made this feel like a Lady Sherlock book!
Finally, are you OK jumping in here without refreshing yourself on previous series books? As long as you can remember the relationships between the recurring characters, you're good to go; previous plot points do not form a part of the mystery here.
This objective review is based on a complimentary copy of the novel.
This one was sooooo convoluted. I know this series is built on multi-layered mysteries, but this one was just too many silly family secrets for not much pay-off. The fact that every few chapters a letter from a victim or huge soliloquy was needed to spill so many details kind of hints as to how much excess plot reveal was required. It didn't even really feel like Sherlock was needed or did much solving overall because these huge confessionals came out from each involved party without much actual investigation.
This entire review has been hidden because of spoilers.
While each audiobook contains a mystery, I recommend starting the Lady Sherlock series from the beginning. Particularly if character relationships and spoilers are important to you. In The Vanished Sister, we get to know more about Mrs. Watson, her family, and niece.
Three years have passed since events of the previous book, and Charlotte is at Lord Ingram’s seaside cottage in North Devon along with Mrs. Watson and her niece, enjoying a summer holiday. While on a boat, Mrs. Watson is taken aback when she notices her estranged sister, Justina, on the shoreline. Later that day she arrived at Ash’s summer home and invited Mrs. Watson and her niece to attend a dinner at her summer home.
We learn the backstory surrounding the sister’s relationships and the daughter Mrs. Watson has been forced to not claim. Hoping to mend fences, they attend along with Ash and Charlotte. Mrs. Watson does not trust Mrs. Carstairs’s motives, but at one time she adored her sister. That changes when Justina disappears without a trace. All hope seemed lost when a body washed up on the shore, but Mr. Carstairs is certain the body is not that of his wife.
Naturally, Charlotte investigates, and the tale hooked me and never let go. Thomas is a masterful storyteller and her mysteries superb and unique. Mix in the slow-burning romance between Ash and Charlotte and the tight-knit group, and you cannot help but be drawn in.
An absolutely addictive tale; I cannot recommend The Vanished Sister enough. Kate Reading narrates the series and gives voice to each of these characters. She captures the tone of the tale and the characteristics of each character perfectly. I cannot imagine not listening to this series. It has become one I look forward to each year.
Three years have passed since the last clash with Moriarty, and Charlotte and Mrs. Watson have gone about the business of Sherlock Holmes, Consulting Detective, in relative peace. Charlotte and Ash frequently spend time together in his seaside cottage in North Devon, which is where the party encounters Justina Carstairs, Mrs. Watson's sister. Justina and Joan went about their lives very differently, with Justina choosing the path of utter respectability, marrying well rather than taking to the stage, causing their estrangement. The encounter stirs up old feelings, but when a body turns up that may be Justina's, Mrs. Watson finds she isn't yet ready to say goodbye to her older sister.
The Vanished Sister takes an interesting time jump, giving us three years' space from the previous books. I love that Sherry Thomas did this, giving us space and a breather from the intensity of the Moriarty plot. For those who know the series, you know that Thomas alternates between books where Charlotte is really the central driver of the story and those where she works more behind the scenes for her companions to work through the mysteries that affect them directly. This is a story for Mrs. Watson, and we get the interiority of her childhood in a way we couldn't if Charlotte took center stage. While this makes it not one of my favorites in the series, it does provide a balance in the overall story arc.
There are a lot of new characters in this book, since we meet many Newells and Carstairs. Longtime readers of the series will recognize those family names, but most of the pivotal characters are ones we encounter in The Vanished Sister. If you are new to the series and starting here....good luck. There are probably more characters than you'll be able to keep track of. While this feels like a new chapter in the series, I think readers might be frustrated trying to learn too much background.
As a small aside, we had a conversation in our book club the other night about the style of these mysteries. They are, of course, Sherlockian, meaning we are never given all of the clues and you are not able to solve the mystery. Charlotte herself remarks on how fun it is to dispose of elegant theories, and this whole novel is a dispense of the elegant, and a reminder that our instincts can lead us awry. I love the way that theme is woven throughout. This may feel the most Sherlockian since the earliest books.
Thank you to Berkley for an eARC. The Vanished Sister is out 9/29/2026.
Sherry Thomas is a master of her craft and I will be very sad when this series comes to an end. But I feel this and the last books drag quite a bit. As usual this one too was entertaining and clever. However, I got tired of reading from Mrs Watson’s point of view, perhaps because it triggered my anxiety too?
Mrs Watson’s head is tiresome and eventually I missed having the plot revolve more around Charlotte. This book felt like something to keep us waiting while we hold out for the finale. I didn’t care much for the drama in Mrs Watson’s life despite it being rife with mystery.
The conclusion, unlike in all the other books in this series, was a let down. The climax didn’t hit right and I was surprised by being let down.
That being said I would still read Thomas’ grocery lists if offered.
I really liked the previous books in this series but honestly got lost from too many characters and am still not sure who did what to whom. I came away totally confused and glad to have finished it.
The plot of this book was at times exciting, with some shocking moments and full of many twist and turns. The mystery is engaging, the pacing is solid, but it lacked the tension and intrigue that made other books hard to put down. Sherry Thomas' eye for detail brings the era and the settings to life, making you feel like you are in the scene with the characters. I did enjoy the deeper look into Mrs. Watson's past and how she ended up where she did and with who she did. I did wish there were more Charlotte and Ash scenes and more progress in there relationship. Overall, while this wasn't my favorite entry in the series, it was still a worthwhile read. I struggled to read this book, putting it down and picking it back up many times. I did have trouble trying to remember which of the way-too-many characters is related to whom, who was involved in what as well as who was where. It was a little hard to keep up when scenes changed from one sentence to the next. I would go back to see if I missed anything.
Not the strongest entry in this long-running series, but I enjoyed it anyway. Mrs. Watson is our focal character in this one. She has a sister from whom she has long been estranged, so when that sister, Justina Carstairs, reaches out and invites her to a house party, she is torn between suspicion and a hope for reconciliation. What unfolds from there is a gothic tale of very troubling family dynamics. I liked learning more about Mrs. Watson's background. And I was happy to spend more time with Penelope. It was also good to see more of Olivia and Stephen Marbleton. Charlotte, meanwhile, divided her time between being in the background and being Sherrinford Holmes. There are rumbles of Moriarty making a comeback--something to look forward to in the next book. Which I will definitely read, whenever it appears.
This was a fairly entertaining if at times overly complicated mystery! I appreciate the focus on Mrs. Watson and honestly felt relieved to have a bit of a break from the Moriarty plot.
The mystery in the ninth Lady Sherlock series strikes close to home. Mrs. Watson has long been estranged from her older sister. They chose different life paths with Mrs. Watson choosing the demi-monde and her sister a seemingly more reputable path. Mrs. Justina Carstairs married very well and is the mistress of a great manor. Years earlier, when Mrs. Watson's daughter was born, that sister came to her and demanded that she say the child was not her own but the daughter of cousins who had passed away. Thus, for years, Mrs. Watson couldn't claim her own child.
Now, with the children grown, Mrs. Carstairs invites Mrs. Watson and her "niece" to attend a house party at her seaside home. Mrs. Watson reluctantly attends and finds a house full of tension and secrets. When her sister disappears, Mrs. Watson calls on her friend Charlotte Holmes to help find her and untangle the lies.
Actually, Charlotte has already been called on in her Sherlock Holmes persona to look into some things. Things get complicated when a body is discovered which at first seems to be Justina but is soon discovered to be another woman altogether. Looking into her life leads Charlotte and Mrs. Watson to uncover long buried secrets and plots filled with twists and turns.
This was another engaging episode in the Lady Sherlock series.
This story had so many twists and turns, it was well crafted. Lots of characters, like the previous book. The list of the cast at the beginning of the book was helpful.
I have treasured each and every one of the books in this series. I have read the first 8 books twice and have listened to them 3 or 4 times as well. I preordered the 9th book and couldn’t wait to read it. To say I am disappointed is an understatement. The book should have centered on Sherlock Holmes, AKA Charlotte Holmes, and then included her inner circle. It barely had Lord Ingram and Charlotte in it. Few details were included about how things will go from here. I feel like the author lost her way. Reading it was a letdown—not to mention that nothing with Moriarty was settled either. I should have stopped reading at the end of the 8th book.
This cover is FIRE! 🔥 Honestly, one of my favorite things about this series is the slow-burn romance between Charlotte and Ash—but a VERY close second? THESE COVERS. 😍
As for the mysteries…Don’t even waste your time trying to solve them before Thomas decides to reveal all. Nine books in, and I’m STILL rereading passages multiple times trying to untangle the twisty plots and remember which of the WAY-too-many characters is related to whom. At this point, I’ve accepted defeat.
This time, I basically gave up trying to keep track of the characters and just plowed through to the Charlotte & Ash scenes—which, RUDELY, are few and far between.
When Mrs. Watson’s estranged sister disappears, the gang cuts their vacay short to investigate and winds up uncovering an absurdly complicated web of infidelity, lies, and murder. Thankfully, there’s still no Moriarty nonsense to deal with! It’s been three years since their last run-in with him, and the gang is finally starting to settle into their lives and move forward with their personal relationships. YAY!
Unfortunately, Charlotte’s increasingly elaborate leaps of logic in solving the crimes pushed my suspension of disbelief straight off a cliff (like a certain corpse-IYKYK). Some of her deductions are SO far-fetched that I eventually decided the only reasonable explanation is that Charlotte is actually a magical fae queen with supernatural powers. And honestly? That made everything much easier to swallow.
If you’re reading this series primarily for the mysteries, you may have a much better time than I did. But if, like me, you’re nine books deep because you need to see Charlotte and Ash FINALLY GET THEIR ACT TOGETHER… this one is going to feel like a very long, very complicated detour with painfully few romantic pit stops.
3 stars for me. I’m still invested in the series, but Sherry Thomas, I am BEGGING: more Ash & Charlotte, less fae-queen-level detective gymnastics. 🙏
Thanks to Berkley Publishing and NetGalley for the arc!
It was wonderful to be back in the world of The Lady Sherlock series! Charlotte, Ash, Mrs. Watson, Livia, Inspector Treadles, and Penelope are all back. This book focuses on Mrs. Watson including her POV and the investigation into her missing sister, with whom she recently reunited. The book opens with a time jump of 3 years from the end of the previous book, so it was lovely to see how all our favorites have grown and evolved over that gap.
There is a huge cast of characters in addition to those above and I will admit, it was confusing at times for me and I struggled to keep them all straight. Thankfully there is a character guide at the front, which I referred to OFTEN! The plot has the twists and turns you expect from the masterful Sherry Thomas, but all is revealed and resolved by the end of the story.
If you are looking for a historical mystery, with carefully crafted characters, devious plot, lovely banter, and surprising adventures…this is the one.
I did not re-read the series for this, and I don’t think it was necessary… however, I don’t think this is the place to start, since so much of the characters development makes a bigger impact knowing the origins.
The Vanished Sister opens with three years passed since the end of the previous title. The gang is all together, relaxing at Ash’s seaside manor. Everything has been wonderful, without a peep from Moriarty, allowing everyone to spend more time with those dearest to them. Mrs. Watson gets a visit from her estranged sister, whose family has an estate nearby, asking Mrs. Watson to join them for the weekend. While at her sister’s home, the visit is awkward, but not entirely unpleasant, and Mrs. Watson leaves feeling okay. All seems well until the body of a woman washes up on the shore and Mrs. Watson fears it is her sister.
The Vanished Sister provides another complex mystery for Charlotte. I love that the stories are no longer just “Lady Sherlock’s” tales, but rather an ensemble cast of delightful characters. Genuine affection and friendship infuse the story, which allow the characters to work so well together. They often can anticipate what others are thinking which makes them an excellent mystery solving team. They trust one another, never questioning an odd request or directive, confident the other knows what is best in the given situation. I adore the character development, strengthen bonds, and personal relationships that grow with each story.
The mystery is a personal one, impacting Mrs. Watson directly. She uncovers horrors about her own sister, which leaves her in emotional upheaval. Yet, she perseveres to uncover the truth, stronger in the end. The story is very entertaining. However, similar to the previous book, A Ruse of Shadows, The Vanished Sister also falls victim to an overly complex plot, with a few too many coincidences that were manipulated to make the story work as it did. The number of characters and parallel subplots caused confusion, and at times, I had to re-listen to passages to make sure I understood what had transpired. The book opens with a list of characters, which I wish I could have referenced in print from time to time.
Narration: The story is shared from multiple third-person POVs, both male and female. This is the ninth book in the series, and the character voices and overall narrator are very familiar to me. I enjoy Reading’s performance quite a lot. Her narrator has a feminine, British-accented voice. The dialogue is successfully altered based on gender, age, socio-economic background, and nationality - enough to identify each character out of a group. Reading’s male voices are fairly deep and genuine. She does a wonderful job infusing the dialogue with just a hint of emotion, or in Charlotte’s case, her attempts to express the appropriate emotion, making the entire story come to life.
The Lady Sherlock Mysteries remain one of my favorite historical whodunit series, even with the confusion due to an overly complex plot. I cannot help myself, rooting for Charlotte and her found family despite the odds.
My Ratings: Story: B Narration: A
Originally posted at That's What I'm Talking About Review copy provided by the publisher
Another solid installment in the Lady Sherlock series, which has become one of my go-tos for cozy fall reading. As usual, the plot is meticulously thought out, and the settings are interesting and atmospheric. We learn a lot more about Mrs. Watson's background in this one, which is welcome given that she's such a great character. The other regular cast members take a bit of a backseat, including Charlotte (though we do get to see her in disguise, which is always fun.) As usual, there are abundant rarely-used vocabulary words (including brouhaha), descriptions of garish dresses, numerous mansions, and various cakes/pastries. The tone of this one is a bit more sombre than most of the books, and at points it's downright sad, but it goes out on a high note. Already can't wait for the next installment! I hope Sherry Thomas won't tire of writing these any time soon.
I wanted to love this book since the series started so strong, but it fell flat for me. I was looking forward to a break from the Moriarty plotline whjch was feeling stale, but found this book very meandering and lacking the interesting character development of the first few books that focused on Charlotte and Livia. While Mrs Watson is the focus of this book she doesn’t have a very distinct point of view aside from “regretful aging lady” which felt very incongruous with how she is portrayed in other books. There was also no deduction or Sherlock like logic, just a lot of random guesses and spontaneous confessions verbally or in letters. I finished it because I’ve been committed to the series and hoping it will pick back up and get as strong as the first few books. In a vacuum probably would have been a DNF.
So much for a relaxing seaside holiday! Mrs. Watson's estranged sister turns up, promptly disappears, and suddenly everyone seems to have a secret. I loved getting a closer look at Mrs. Watson, especially the messy feelings that come with family you haven't seen in years. Charlotte is as sharp as ever, though I missed having her front and center a bit more. There are enough names and tangled connections here that I had to backtrack a couple of times, but the atmosphere and sneaky little twists kept me hooked. Not my favorite Lady Sherlock mystery, but still a really enjoyable one.
The Vanished Sister, by Sherry Thomas, is the Ninth installment in the author's Lady Sherlock series. Three years have passed since Charlotte Holmes dealt a serious blow to Moriarty’s operations in Britain. The interval has been unusually quiet. Charlotte, Mrs. Joanna Watson, Lord Ingram (Ash), and Penelope gather at his seaside cottage in North Devon for what looks like an ordinary summer holiday. Then Mrs. Watson receives an invitation from Justina Carstairs, her elder sister, whom she has not seen in years.
Wow. The depth and breadth of characters and plot twists left me breathless. I’ve enjoyed every one of this series and wait for the next anxiously but there was something special about this one. Maybe because the focus was on Mrs Watson for a change. The narration by the sublime Kate Reading was the cherry on top. Her voice is so distinctive there were times I was transported back to the Stormlight Archive- another exceptional series but very different.