Caller Unknown
Gillian McAllister
  • Published: 29 January 2026
  • ISBN: 9781405957267
  • Imprint: Penguin eBooks
  • Format: EBook
  • Pages: 416

Caller Unknown

Formats & editions
Tr. Paperback
3 Feb 2026
EBook
29 Jan 2026
Audiobook
29 Jan 2026
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Would you become a fugitive to save your child? Another astonishing high-concept hook from the author of million-copy bestseller Wrong Place Wrong Place

'Your children are only ever on loan to you...'

Simone's holiday with her teenage daughter was meant to be some much-needed bonding time before Lucy leaves home.

But on the first night of the trip, in a cabin in the desert, Simone wakes to find Lucy missing and a mobile phone in her place. The phone rings and the voice on the other end issues a shocking demand: Don’t tell the police. Come to this location. Be prepared to do a deal…

When she tells her husband, Damien, back home in England, he insists that she call the police. But Simone feels certain that there is nothing she wouldn’t do to save her daughter. Even if that means shattering her life as she knows it...
  • Published: 29 January 2026
  • ISBN: 9781405957267
  • Imprint: Penguin eBooks
  • Format: EBook
  • Pages: 416
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About the author

Gillian McAllister

Gillian McAllister has been writing for as long as she can remember. She graduated with an English degree and lives in Birmingham, where she now works as a lawyer. Her debut novel Everything But The Truth was a Sunday Times Top Ten bestseller. You can find her on Twitter @gillianmauthor.

Also by Gillian McAllister

Famous Last Words
Wrong Place, Wrong Time
Just Another Missing Person
That Night
How to Disappear
The Evidence Against You
No Further Questions
See all

Praise for Caller Unknown

PRAISE FOR GILLIAN MCALLISTER

An incredible, gripping, thrilling read

LISA JEWELL

I'm a devoted fan

LIANE MORIARTY

Bravura novel writing

IAN RANKIN

An utterly original kidnap story that throbs with tension—hard to put down.

Shari Lapena

Gillian McAllister has done it again! This is such a clever, tense and twisty book, I inhaled it in under a day. The pacing is perfection and the twist, when it comes, is deeply satisfying, but it is the characters that elevate Gillian's books into the best of the best,

LISA JEWELL

As moving as it is gripping, this superior thriller is, more than anything, a testament to the power of a mother’s love

Sophie Hannah

Caller Unknown sets a new standard for modern thrillers - you’ll gasp, you’ll cry, you’ll never forget this story.

Holly Seddon
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