If you only read one thriller this year, make it The Marsh King's Daughter. It's sensational (CLARE MACKINTOSH)

A constantly surprising novel which never takes the obvious route, it is emotionally and intellectually thrilling as well as tremendously exciting (SUNDAY EXPRESS)

Sensationally good psychological suspense - I loved this book (LEE CHILD)

Subtle, brilliant and mature...superb...as good as a thriller can be (NEW YORK TIMES)

This gorgeously written eerie suspense novel gave me chills... I loved it (KARIN SLAUGHTER)

Tension-filled thriller... Disturbing and atmospheric - it gripped me from the first page (WOMAN & HOME)

Original and exciting, with a thrilling ending. If you liked Room, you'll love it (MARK EDWARDS)

ONE OF THE BEST BOOKS OF THE SUMMER Exceptional...Helena's conflicting emotions about her father and her own identity elevate this powerful story (PUBLISHERS WEEKLY STARRED REVIEW)

Oh, such a wonderful book... I am completely blown away. Just mesmerising (ALEX MARWOOD)

BEST BOOKS TO READ THIS SUMMER Although there are shades of Emma Donahue's Room here, Dionne explores more thoroughly the relationship between captor and captive, the heavy anchoring of a familial bond and the exploitation of childhood innocence... Riveting (EVENING STANDARD)

I was absolutely gripped. What a fresh novel, and so expertly plotted and wonderfully well written. I loved the narrative voice, and thought the balance of beautifully drawn and compelling character study and heart-pounding action was absolutely superb. A real tour-de-force (GILLY MACMILLAN)

A nail-biter, perfect for Room fans (COSMOPOLITAN)

I was drawn into Karen Dionne's The Marsh King's Daughter from its first captivating sentences. Troubling, sinuous and powerfully told, you won't be able to stop turning the pages (MEGAN ABBOTT)

A mesmerising central character, enthralling story, and I LOVED the writing. Can't recommend The Marsh King's Daughter enough (G X TODD)

Man-oh-man! Fabulous. Read in two sittings and don't think I breathed once. Gripping tale, such complex emotions. Word perfect (CAROLE MATTHEWS)

I don't use the word "brilliant" often, but no other adjective feels adequate to describe this amazing novel... It's an understatement to say The Marsh King's Daughter is an exceptional achievement (DAVID MORRELL)

Eerie and breathtaking, terrific and terrifying in the best possible way (TÉA OBREHT)

Totally compelling and different from anything I can remember reading before (PETER LOVESEY)

Loved The Marsh King's Daughter. Haunting and compelling (TOM WOOD)

Powerful storytelling, gripping suspense - yet heartbreaking too... Karen Dionne is one amazing writer (SAM KING)

This is Room meets The Revenant and has screenplay adaptation shot through it like a stick of rock... the plot is fantastic but it is the characters that set this book alight... Loved, loved, loved this book, finished it incredibly quickly and now wish I could read it all over again! Read it! (L.V. HAY)

SO GOOD and unlike anything else I've read. Haunting and unputdownable (LAURA MARSHALL)

Karen Dionne's The Marsh King's Daughter is riveting from beginning to end. This fast-paced, suspenseful thriller is a masterpiece of crisp prose and fine storytelling. Dionne infuses every sentence with suspense, using palpably vivid details to maintain an ominous and gripping sense of danger. Sinister and complex, this book's twists and turns lead to a final confrontation so intense it will leave your heart pounding. The Marsh King's Daughter is bound to become a classic. Read it (SARA GRUEN)

In this riveting story...there are shades of Emma Donoghue's Room, (though) Dionne explores more thoroughly the relationship between captor and captive, the heavy anchoring of a familial bond and the exploitation of childhood innocence (EVENING STANDARD)

THE MOST THRILLING READ OF THE SUMMER - packed with gripping suspense and powerful storytelling, The Marsh King's Daughter is a unique one-more-page, read-in-one-sitting thriller that you'll remember for ever.

'I was born two years into my mother's captivity. She was three weeks shy of seventeen. If I had known then what I do now, things would have been a lot different. I would have been a lot more understanding of my mother. I wouldn't have adored my father.'

When the notorious child abductor known as the Marsh King escapes from a maximum security prison, Helena immediately suspects that she and her two young daughters are in danger.

No one, not even her husband, knows the truth about Helena's past: they don't know that she was born into captivity, that she had no contact with the outside world before the age of twelve - or that her father raised her to be a killer.

And they don't know that the Marsh King can survive and hunt in the wilderness better than anyone... except, perhaps his own daughter.

The Marsh King's Daughter will captivate you from the start and chill you to the bone.

'This gorgeously written eerie suspense novel gave me chills... I loved it' KARIN SLAUGHTER

'If you only read one thriller this year, make it The Marsh King's Daughter. It's sensational' CLARE MACKINTOSH

'Sensationally good psychological suspense - I loved this book' LEE CHILD