Returning from her honeymoon with Colin Hargreaves and a near brush with death in Constantinople, Lady Emily convalesces at her mother-in-law's beautiful estate in Normandy. But the calm she so desperately seeks is shattered when, out riding a horse, she comes upon the body of a young woman whose wounds are identical to those inflicted on the victims of Jack the Ripper. Pursuing a trail of clues and victims to the beautiful medieval city of Rouen and a crumbling chateau in the country, Emily is forced to match wits with a brilliant and manipulative killer. Only her courage, keen instincts and formidable will to win can help her escape descending into madness and becoming his next victim.

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"Along with swift narrative and impeccable research is Alexander's commitment to understanding the place women held in the culture and era—no 21st century transplants here...You don't get cheap veneers of history from Alexander; you get a great story and a heroine you admire—and a sense of the women who really did change history 100 years ago." —Nashville Lifestyles Magazine

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"Tasha Alexander’s clever dialogue, along with her convincing period detail, brings life to her story and showcases the breathtaking beauty of the Normandy countryside. Considering its incomparable setting and irresistible characters, Lady Emily’s fan club is sure to grow by leaps and bounds with DANGEROUS TO KNOW."—Bookreporter

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"Dangerous to Know is in many ways an homage to the Victorian authors, such as Mary Elizabeth Braddon, that Alexander so obviously loves. Gothic elements abound: there is a ghostly face in a tower window; other-worldly cries echo through the night; madness haunts a family; and an asylum looms large in the plot. There is also a brother/sister relationship that is positively Brontëan..Alexander even provides her own version of the Byronic hero...charming enough to make even a cynical twenty-first century reader swoon a little...Across the series, Alexander has clearly worked very hard to keep her characters true to their time and station while giving them the space to stretch their limits. So Lady Emily is never going to look on a corpse with cold dispassion. But she’s never going to turn away from one, either."—Chapter 16

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"There is a vortex within the world of literature,and readers are in tune with this spacial warp. It’s the magic that arises when a reader become lost inside a story, when the outside world fades and the written one becomes a momentary reality. Tasha Alexander builds her own enchanting maelstrom with her latest Lady Emily novel, Dangerous to Know. Inside this suspenseful, gothic mystery, Alexander paints a perfectly poetic Victorian landscape and takes readers into an old world re-imagined...Alexander’s love for the Victorian era elevates a captivating mystery into an unforgettable tale. Her extensive research of the era, combined with compelling characters, an irresistible heroine and a clever love story will translate effortlessly into minds of readers in the modern world. With wisps of darkness, shadows of a ghost story and embers of heightened Freudian themes, Dangerous to Know is the perfect novel to curl up with and chase away the world."—examiner.com

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"Readers who enjoy historical mysteries with strong female characters will find much to enjoy here and will want to seek out Lady Emily’s earlier adventures."—Booklist

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"By the end of Dangerous to Know, I learnt that madness comes in many guises, that love is different things to different people, and that I really want to read the next book in the series right now. "—Paperback Dolls

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"Lady Emily Hargreaves is our favorite Victorian detective. If you love high society crimes then don’t miss this series by Tasha Alexander, one of today’s best mystery writers." —BookManBookWoman