'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 reviewDISCOVER YOUR NEW FAVOURITE THRILLERScientist Sarah Collier is showing signs of early Alzheimer's - but a controversial new technology being unveiled in Switzerland promises a cure.In Geneva, amid five-star luxury and swirling rumours, events turn violent. With her memory loss worsening, Sarah has to decide who to trust: the people around her - or, despite her symptoms, herself.'SENSATIONAL.' Clare Mackintosh 'I RACED THROUGH IT.' Lucy Foley 'OUTSTANDING.' Harlan Coben 'HEART-POUNDING.' Lucy Clarke, author of The Hike 'IMMENSELY READABLE.' Sarah Hilary, author of Fragile 'HIGHLY ADDICTIVE.' Alice Feeney, author of Daisy Darker 'STUNNING.' Helen Fields, author of The Institution 'PACY AS HELL.' Imran Mahmood, author of You Don't Know Me 'ICILY TENSE.' Telegraph 'HAS IT ALL!' L. J. Ross, author of Holy Island