'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 review

DISCOVER YOUR NEXT FAVOURITE THRILLER

Nobel Prize-winning scientist Sarah Collier has started to show the same tell-tale signs of Alzheimer's disease as her father: memory loss, even blackouts. So she is reluctant to accept the invitation to be the guest of honour at a prestigious biotech conference - until her husband Daniel, a neuroscientist, persuades her that the publicity storm will be worth it. The technology being unveiled at this conference could revolutionise medicine forever. More than that, it could save Sarah's life.

In Geneva, the couple are feted as stars - at least, Sarah is. But behind the five-star luxury, investors are circling, controversial blogger Terri Landau is all over the story, and Sarah's symptoms are getting worse. As events begin to spiral out of control, Sarah can't be sure who to trust - including herself.

'SENSATIONAL.' Clare Mackintosh

'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