The Truth About Ruby Cooper

The Truth About Ruby Cooper is a gripping psychological thriller about family secrets, guilt, and betrayal, following Ruby Cooper as a single incident reshapes lives across decades and continents.

on Jun 04, 2026

The deliciously dark new suspense novel from the international bestselling author of Strange Sally Diamond

THE NUMBER ONE BESTSELLER

‘I couldn't stop reading! Absolutely a triumph!’ Freida McFadden

‘What a read! A brilliantly dark and tangled web that every reader will be completely ensnared by’ Graham Norton

‘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

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.

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

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

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