'A New York Times bestseller and Guardian Book of the Month'This flawless masterpiece deserves to be a bestseller.'
DAILY EXPRESS

'Tough, tense and twisty - but tender, human and deeply affecting, too ... I don't have a sister, but when I finished the book I called my brother, just to hear his voice.'
LEE CHILD

'An outstanding crime novel.'
PAULA HAWKINS, author of The Girl on the Train

'A remarkable, profoundly moving novel about the ties that bind and the irrevocable wounds of childhood. It's also a riveting mystery, perfectly paced. I loved every page of it.'
DENNIS LEHANE

'Outstanding . . . an intense family thriller . . . The clever plot and involving characters set a high standard for this new year.'
DAILY MAIL

'This is a thrilling and heartbreaking exploration of the strain the opioid crisis puts on families. A masterpiece.'
DAILY MIRROR