She can't trust anyone. Not even herself . . .*Shortlisted for the Fingerprint Award for Debut Book of the Year**Shortlisted for the Best Fiction Audiobook at the British Book Awards*'I raced through it.' Lucy Foley'Outstanding.' Harlan Coben'Heart-pounding.' Lucy ClarkeWhen you have it allSarah Collier has been lucky: she's got a glittering scientific career and a husband who loves her more than anything.And you start to lose itBut now she's showing signs of early Alzheimer's, and the only hope for a cure is in a controversial new technology being unveiled in Switzerland.You'd go anywhere for help In Geneva, as events turn dangerous and her memory loss worsens, Sarah has to decide who to trust: the people around her - or, despite her symptoms, herself.'Sensational.' Clare Mackintosh 'Immensely readable.' Sarah Hilary 'A rollercoaster ride.' Guardian 'Highly addictive.' Alice Feeney Stunning.' Helen Fields 'Pacy as hell.' Imran Mahmood 'Icily tense.' Telegraph 'Has it all!' L. J. Ross'Loved it!! Gripping from first page to last, there is no let up!' 5* reader review 'Absolutely fantastic debut novel. Intelligent thriller, great twists, strong women . . . Loved it!' 5* reader review 'The twists are fast and furious. What an ending. Be still my racing heart!' 5* reader reviewShortlisted for Debut Book of the Year for 2023 at the Capital Crime Fingerprint Awards, 2024Shortlisted for the Best Fiction Audiobook at the British Book Awards, 2023.