*The #1 Irish bestseller*The latest gripping new thriller featuring DS Maeve Kerrigan and DI Josh Derwent from the Top Ten Sunday Times bestselling author‘The most dangerously addictive series in crime fiction’ ERIN KELLY‘Oh. My. God.’ RUTH WARE‘I LOVE it - it is completely MAGNIFICENT’ MARIAN KEYES''Utterly brilliant'' LIZ NUGENT‘Sublime’ ANDREA MARA''An old-fashioned locked room mystery wrapped in a deeply moving love story'' MAIL ONLINEA closed door. An impossible murder.2:32 p.m. Wealthy, privileged Ilaria Cavendish checks into a luxury London hotel and orders a bottle of champagne. Within the hour, her lover discovers her submerged in a bath of scalding water, dead.At first glance it looks like an accident. No one went in with her. No one came out. But all the signs point to murder.For DS Maeve Kerrigan, the case is a welcome distraction. But when shock news hits close to home, affecting her partner, DI Josh Derwent, she faces the toughest challenge of her career. And if she fails her world will never be the same again…Praise for Jane Casey''With every breath in my body, I''m BEGGING you to read Jane Casey''s books!'' Marian Keyes‘The ultimate just-one-more-chapter read. Come for the thrill of a historic disappearance case, and get obsessed by the sexiest will-they-won''t-they in crime fiction’ Abigail Dean‘Jane Casey is simply one of the best writers of detective fiction today. There aren’t enough superlatives. I’m in awe. I utterly loved it’ Liz Nugent‘A twisting, seductive, sensational thriller. Tense, heartfelt and hugely gripping, A Stranger in the Family is Jane Casey at her phenomenal best’ Chris Whitaker‘Nobody plots better than Jane Casey…the twist in the end was as surprising as it was satisfying’ Stig Abell''A Stranger in the Family blew my mind. 2024 has barely started and this is already one of my books of the year’ Jo Spain‘As tense as piano wire, intricately plotted, endlessly intriguing and all underpinned by a simmering "will they, won’t they" narrative. Just terrific’ Neil Lancaster‘The undisputed queen of simmering tension. Explosively good’ Sarah Hilary''A wonderfully clever plot, surprises at every turn…one of the very best authors writing today'' Andrea Mara''Stellar stuff: funny, sexy, and a character and a case that will break your heart'' Jo Callaghan‘This book hit the ground running and didn’t let up’ Sam HollandThe Secret Room was a #1 Irish bestseller on Sunday 4th May 2025READERS LOVE THE SECRET ROOM…‘Flawless writing, flawless plotting and flawless characterisation. I’m utterly addicted to this series!’ ‘You will not be disappointed!’ ‘So compelling and tense right to the end’ ‘This is what Maeve and Josh fans have been waiting for’ ‘I need more already from this addictive series’ ‘It’s 1am and I should have been asleep hours ago, but I couldn’t put the book down’ ‘Hard to review without spoilers!’ ‘OMG!!!!!!!! The way Jane Casey is able to surprise me book after book’