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English
HARPER360
01 May 2025

*THE SMASH HIT NO.1 INTERNATIONAL BESTSELLER ~ A GUARDIAN and SUNDAY TIMES THRILLER OF THE MONTH ~ TV IN DEVELOPMENT WITH NETFLIX
*

IT’S THE CRIME OF THE CENTURYEveryone knows the Anna O case.

Everyone knows it was her fingerprints on the knife.

But no-one knows the secrets of her sleepwalking.

No-one knows whether she really meant to kill that night.

As a trial nears, the mystery reawakens.

Is she innocent, or guilty?

IT’S TIME TO PICK A SIDE

READERS LOVE THE STORY OF ANNA O

⭐⭐⭐⭐⭐ ‘Best book of the year so far and will take some beating’

⭐⭐⭐⭐⭐ ‘Hooked me from the start and continues to haunt me. Brilliantly written and so many red herrings!’

⭐⭐⭐⭐⭐ ‘Absolutely riveting, I couldn't put it down’

⭐⭐⭐⭐⭐ ‘This was a rollercoaster read with some exciting twists and a killer ending’

⭐⭐⭐⭐⭐ ‘Addictive, brilliant and one I would definitely recommend’

⭐⭐⭐⭐⭐ ‘I loved this incredible fast-paced thriller’

⭐⭐⭐⭐⭐ ‘If you like The Silent Patient, this is the book for you.’
By:  
Imprint:   HARPER360
Country of Publication:   United Kingdom
Dimensions:   Height: 198mm,  Width: 129mm,  Spine: 25mm
Weight:   280g
ISBN:   9780008607838
ISBN 10:   0008607834
Pages:   432
Publication Date:  
Audience:   General/trade ,  ELT Advanced
Format:   Paperback
Publisher's Status:   Active

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.

Reviews for 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 '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 'One of the breakout hits of the year' BUSINESS POST 'Fresh and compelling…set to be a hit' ADELE PARKS FOR PLATINUM


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