"The New York Times bestselling master of psychological suspense returns with a riveting thriller in which the possible heirs of a wealthy dying man are mysteriously being eliminated, one by one by one"--,Provided by publisher.

Tech billionaire Miles Cookson has everything he could dream of-- except time. Recently diagnosed with a terminal illness, there is a fifty percent chance that it can be passed on to the next generation. Two decades ago young, struggling Miles was a sperm donor. Somewhere out there, he has kids-- nine of them. And they might be about to inherit his fortune-- or maybe something much worse. Aspiring film documentarian Chloe Swanson is on a quest to find her biological father, armed with the knowledge that her mother used a New York sperm bank to become pregnant. Miles and Chloe find each other-- but his other potential heirs are vanishing: every trace of them wiped, like they never existed at all. Is it another heir erasing rivals? Or is something more sinister going on? -- adapted from jacket