Callie Kazumi

Nathalie Buscombe

cuckoo

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Cuckoo

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'Twisted and deliciously surprising – I loved it!'

'With a killer premise, and an intriguing and complex narrator, Cuckoo is impossible to put down. I flew through it!'

'Addictive and poignant and doesn't let go until the very end'

'Clever storytelling against a backdrop of vivid psychological trauma, and a sense of creeping horror as you realise the truth about the plot! Highly recommended.'

'Cuckoo is an outrageous white-knuckle ride that packs one hell of a punch, but as the psychological journey unfolds, the truth is as heart-wrenching as it is shocking. Callie Kazumi is one to watch.'

'This book is INCREDIBLE! It will mess up your mind and you'll finish it wanting more! Brilliant and addictive.'

'A debut with terrific pace and sinister character dynamics. At once beautifully unpredictable and unnerving. I loved it.'

'Tense, deceptive and darkly compelling - a brilliant debut.'

'This story about love and obsession will have you gripped.'

A gripping debut thriller with a killer twist at its core. 
 
When Claire surprises her fiancé, Noah, at work for their anniversary, she’s the one who ends up being shocked to her core … 
 
Because Noah left the company nine months ago, and she had no idea. How can she not have known? 
 
Now he isn’t answering her calls. He won’t respond to her messages. He’s disappeared. 
 
As Claire desperately tries to find her fiancé, her world begins to shatter as the truth about who Noah really is starts to emerge. 
 
And things are about to spiral dangerously out of control . . .

Brought to you by Penguin. 
A gripping debut thriller with a killer twist at its core. 
 
When Claire surprises her fiancé, Noah, at work for their anniversary, she’s the one who ends up being shocked to her core … 
 
Because Noah left the company nine months ago, and she had no idea. How can she not have known? 
 
Now he isn’t answering her calls. He won’t respond to her messages. He’s disappeared. 
 
As Claire desperately tries to find her fiancé, her world begins to shatter as the truth about who Noah really is starts to emerge. 
 
And things are about to spiral dangerously out of control . . . 
 
‘Tense, deceptive and darkly compelling – a brilliant debut’ T.M Logan 
 
© Callie Kazumi 2025 (P) Penguin Audio 2025

Callie Kazumi is a British-Japanese writer who started work on her first book after being gifted Stephen King's On Writing by her father. She lives in London with her husband and their Bichon Frisé, Betsy. Cuckoo is her debut novel.

Cuckoo

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Buy the book from:

'Twisted and deliciously surprising – I loved it!'

'With a killer premise, and an intriguing and complex narrator, Cuckoo is impossible to put down. I flew through it!'

'Addictive and poignant and doesn't let go until the very end'

'Clever storytelling against a backdrop of vivid psychological trauma, and a sense of creeping horror as you realise the truth about the plot! Highly recommended.'

'Cuckoo is an outrageous white-knuckle ride that packs one hell of a punch, but as the psychological journey unfolds, the truth is as heart-wrenching as it is shocking. Callie Kazumi is one to watch.'

'This book is INCREDIBLE! It will mess up your mind and you'll finish it wanting more! Brilliant and addictive.'

'A debut with terrific pace and sinister character dynamics. At once beautifully unpredictable and unnerving. I loved it.'

'Audaciously twisty and achingly tender'

'Tense, deceptive and darkly compelling - a brilliant debut.'

'This story about love and obsession will have you gripped.'

About Callie Kazumi

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