Combining the heart and humour of The Thursday Murder Club with a puzzling international mystery, welcome to the blockbusting new series from the biggest new fiction author of the decade, Richard Osman.

Steve Wheeler is enjoying retired life. He does the odd bit of investigation work, but he prefers his familiar habits and routines- the pub quiz, his favourite bench, his cat waiting for him when he comes home. His days of adventure are over- adrenaline is daughter-in-law Amy's business now.

Amy Wheeler thinks adrenaline is good for the soul. As a private security officer, she doesn't stay still long enough for habits or routines. She's currently on a remote island keeping world-famous author Rosie D'Antonio alive. Which was meant to be an easy job . . .

Then a dead body, a bag of money and a killer with their sights on Amy have her sending an SOS to the only person she trusts. A breakneck race around the world begins, but can Amy and Steve stay one step ahead of a deadly enemy?