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  • Published: 12 April 2026
  • ISBN: 9781844886791
  • Imprint: Penguin Ireland
  • Format: Hardback
  • Pages: 384
  • RRP: $49.99

The Truth About Ruby Cooper




The latest deliciously dark novel from bestselling author, Liz Nugent.

If my sister hadn’t been beautiful, none of it would have happened.

Ruby Cooper and her sister, Erin, live an idyllic life in their close-knit church community in Boston. But when Ruby is sixteen, she is involved in an incident that causes her family’s world to implode.

Across decades, the fallout leaves a wake of destruction behind Ruby in Dublin and Erin in Boston.

Not that Ruby wants to think about the past.

But it can’t stay a secret forever.

  • Published: 12 April 2026
  • ISBN: 9781844886791
  • Imprint: Penguin Ireland
  • Format: Hardback
  • Pages: 384
  • RRP: $49.99

About the author

Liz Nugent

Before becoming a full-time writer, Liz Nugent worked in film, theatre and television. Her five novels - Unravelling Oliver, Lying in Wait, Skin Deep, Our Little Cruelties and Strange Sally Diamond - have each been Number One bestsellers and she has won five Irish Book Awards, as well as the James Joyce Medal for Literature. She lives in Dublin.

Also by Liz Nugent

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Praise for The Truth About Ruby Cooper

Dark, fearless and compelling - in other words, classic Liz Nugent. Utterly distinctive and unique, this is another unforgettable work from an outstanding and brilliant crime writer.

Jane Casey

I couldn't stop reading! Absolutely a triumph!

Frieda McFadden

An absolute belter of a book ... Liz Nugent at her dark and twisty best

Louise Kennedy

Absolutely gripping. Another utterly compelling, dark and unsettling piece of work that’s going to give me a book hangover for weeks.

John Marrs

What a read! A brilliantly dark and tangled web that every reader will be completely ensnared by.

Graham Norton

Only Liz Nugent could have written this book ... an unflinching, darkly funny, sometimes disconcerting and always gripping story

Sinéad Crowley

Liz Nugent is fearless in the places she will go to uncover our basest, darkest impulses. Ruby Cooper is her most morally complex character yet. Utterly compelling.

Tammy Cohen

An utterly gripping story about how one incident reverberates across time, damaging and destroying lives. I read it as if in a fever

Shari Lapena

Utterly compelling and brilliantly imagined … all the way to the last dark twist.

Anthony Horowitz

Addictive and awe-inspiring, from the first page to the last.

Diane Jeffrey

Only Liz Nugent can create characters like these … this is a maestro at work. Another sensational read - clear your diary and prepare to be hooked!

Sam Blake

I bloody loved it. Sublime ... dark and hooky.

Louise Swanson

Another triumphant addition to her impressive catalogue

Irish Examiner

Twisted and brilliantly observed

Irish Examiner Culture Magazine

A triumph. Layered, gripping, darker than dark (a LN trademark), and psychologically complex. Beautifully real, flawed, human characters. SUPERB.

Will Dean

Nugent is one of my favourite all-time writers, and her latest is not just a crime novel, it's a study in humanity. Deserves to be massive

Gillian McAllister

Ruby Cooper is captivating and infuriating and tragic . . . brilliant storytelling

Michael Robotham

I absolutely devoured this one. It’s an incredibly brave but really nuanced and layered book.

Imran Mahmood

An intense and gripping novel about a lie that destroys lives and unravels a family over decades. Liz Nugent gets deep into the heads of her characters and lays bare their most human impulses, no matter how dark. A must-read author at the top of her game

Gilly Macmillan

Once again, the incomparable Liz Nugent invites us into the darkest parts of the human psyche. I'm certain her legions of fans will agree: Ruby is her most unforgettable creation yet

Catherine Ryan Howard

So absorbing I forgot I was reading a novel and thought I was being told a twisted real-life story, full of shocking confessions and jaw-dropping revelations. Another masterclass in psychological suspense from one of my favourite writers

Mark Edwards

I LOVED The Truth About Ruby Cooper . . . it’s so thought-provoking and surprising

Claire Coughlan