"Riveting . Blake weaves a sprawling spiderweb of a plot that spans nearly a century and thrills from start to finish, though some suspension of disbelief is required. With a memorable protagonist, jaw-dropping twists, and provocative questions about the nature of memory, this page-turner is nearly impossible to forget." -- Publishers Weekly (starred review) "A dazzling, intricate puzzle box of a novel. The author masterfully intertwines the personal agony of a family secret with the sweeping, morally gray landscape of postwar Europe . The novel is not only a thrilling mystery but a poignant exploration of inherited trauma and the lengths people go to protect the past. For readers who enjoy psychological thrillers with a rich, historical backbone, especially those fascinated by the dark, complex legacy of World War II, this intriguing book is an absolute must-read. Blake delivers a smart, emotionally charged conclusion that is both satisfying and chilling.

" -- MSN.com "An irresistible concept beautifully executed - certain to be one of the year's best thrillers." -- Lee Child, #1 New York Times bestselling author of the Jack Reacher series, on Anna O "A riveting, unsettling crime novel that will keep you turning pages well past your bedtime. Is Anna O a sleeping beauty or a sleeping killer? Matthew Blake's tension-filled thriller is as elusive and mysterious as sleep itself." -- Nita Prose, #1 New York Times bestselling author of The Maid and The Mystery Guest, on Anna O "Like blockbusters such as The Maidens and The Girl on the Train." -- Washington Post on Anna O "An audacious, inventive mystery, a thriller of ideas, and--here's irony for you--a novel about sleep to keep you up late. Anna O reads like a dream but unsettles like a nightmare; the premise is original, the writing stylish, and the payoff unforgettable. You won't forget her name.

" -- A. J. Finn, #1 New York Times bestselling author of The Woman in the Window, on Anna O.