Kirkusreviews iconKirkusreviewsSep 29, 2026 ~7 min source read

The Vanished Sister — a Lady Sherlock mystery that mixes family drama with a complex whodunit

On holiday in Devon, Charlotte Holmes and Mrs. Watson confront the sudden disappearance of Watson’s estranged sister, a body that may be hers, and a tangle of suspects that demand careful attention.

THE VANISHED SISTER

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Useful takeaways from this story.

A seaside holiday turns into an investigation when Justina Carstairs appears, hints at danger, then vanishes and a corpse that resembles her washes ashore.

The plot threads include a possibly unfaithful husband, troubled children, other missing women, and a possible Moriarty angle, producing many suspects across classes and locales.

# What this book is about Charlotte Holmes is on holiday in North Devon with Mrs. Watson, Lord Ingram, and friends when Mrs. Watson's estranged sister, Justina Carstairs, appears unexpectedly. Justina, who belongs to a family of some consequence, asks Mrs. Watson to visit, warns that something dangerous is coming, and then disappears.

A corpse that resembles Justina washes up nearby, but her husband, Mr. Carstairs, insists the body is not his wife. Mrs. Watson and Charlotte, joined by an "intrepid band of sleuths," the police, and Holmes's wider circle, set out to locate Justina and establish the corpse's identity. Other women have gone missing, and the case branches into multiple threads across the countryside.

Major lines of inquiry include whether Mr. Carstairs has been unfaithful or worse, whether one of the couple's children might have a motive, and whether Moriarty is reintroducing himself into Charlotte's life. The investigation requires tracing family histories and the pasts of a broad cast of characters.

# How the story feels and reads The novel blends soap-opera family drama with a classic whodunit puzzle. Sherry Thomas spreads clues about characters' motives and histories in small breadcrumbs. That structure rewards readers who read attentively and track a sizable cast across different social classes and locations.

Readers who prefer a lean, action-forward mystery may find the number of suspects and subplots bewildering. Romance readers hoping for abundant scenes between Holmes and Lord Ingram might be disappointed: the book devotes more space to family dynamics, melancholy moments, and investigatory detail than to sustained romantic interaction.

# Who will like it This book will appeal to readers who enjoy British mystery and gothic atmospheres, and to those who appreciate multi-threaded detective puzzles that require careful attention to motive and backstory. If you enjoy methodical clue-gathering and character-driven family secrets, this entry fits that preference.

# What to watch for while reading

  • Pay attention to how missing women and local incidents might link to central figures—connections are not made obvious at first.

# How this compares to other entries in the series

# Bottom line Victorian mystery that asks readers to work: it offers intricate motive-mapping and evocative family scenes, but it expects close reading to keep the many players and subplots distinct.

More context around this story.

Living Without My Big Sister
Cupofjo iconCupofjoSep 21, 2026

Living Without My Big Sister

My older sister and I were both named after our grandmothers. She, Rebecca, and me, Kathryn. Becky and Katie. After that, our parents ran out of grandmothers, so they had to get more creative naming our two younger sisters.… Read more The post Living Without My Big Sister appeared first on Cup of Jo .

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