Anna O

‘An irresistible concept beautifully executed’ LEE CHILD

‘The twist is one of the best I’ve read’ DAVID BALDACCI

‘Will keep you turning pages well past your bedtime’ NITA PROSE

‘The premise is original, the writing stylish, and the payoff unforgettable’ A J FINN

‘Extremely entertaining and terribly twisty’ CECELIA AHERN

‘A natural-born storyteller’ JEFFERY DEAVER

‘Utterly addictive, fiendishly clever’ LUCY CLARKE

‘Incredibly atmospheric’ RAGNAR JONASSON

‘As unsettling as a waking dream’ STIG ABELL

‘WHAT a ride. Everyone needs to read this book’ CRESSIDA MCLAUGHLIN

‘The smartest thriller I’ve read in years’ EMILIA HART

‘A plot that keeps you guessing’ STEPHANIE WROBEL

‘Will compel you to read it in one white-knuckled gulp’ C J COOKE

‘Ingeniously plotted and impossible to put down’ SARAH J HARRIS

‘Will leave you thinking long after you’re finished reading’ SUN

‘An intricate psychological thriller’ THE BOOKSELLER

‘One game-changing twist after another’ PUBLISHERS WEEKLY

‘Once you pick it up, there’s no putting it down’ KIRKUS

‘The most talked about thriller of 2024’ NBC’s TODAY SHOW

‘Brilliantly executed, packed with insight’ DAILY MAIL

‘Intriguing…A fascinating novel’ MAIL ON SUNDAY

‘A pacy thriller destined for the big screen’ WOMAN & HOME

‘Fresh and compelling…set to be a hit’ ADELE PARKS FOR PLATINUM

After discovering that the average person spends thirty-three years of their life asleep, MATTHEW BLAKE felt the pull of a story. He began extensive research into sleep-related crimes and into the mystery illness known as resignation syndrome, research that sparked a thrilling question: if someone commits murder while sleepwalking, are they innocent or guilty? And so his novel Anna O was born. Before writing fiction, Matthew worked as a researcher and speechwriter at the Palace of Westminster. He studied English at Durham University and Merton College, Oxford.