Gifted musician Clemency Thompson is playing for tourists on the streets of Southern France when she receives an urgent text message. Her childhood friend, Lucy, is demanding her immediate return to London. It's happening, says the message. The baby is back. Libby Jones was only six months old when she became an orphan. Now 25, she's astounded to learn of an inheritance that will change her life. A gorgeous, dilapidated townhouse in one of London's poshest neighborhoods has been held in a trust for her all these years. Now, it's hers. As Libby investigates the story of her birth parents and the dark legacy of her new home, Clemency and Lucy are headed her way to uncover, and possibly protect, secrets of their own. What really happened in that rambling Chelsea mansion when they were children? And are they still at risk?

Soon after her twenty-fifth birthday, Libby Jones returns home from work to find the letter she's been waiting for her entire life. She rips it open with one driving thought: I am finally going to know who I am. She soon learns not only the identity of her birth parents, but also that she is the sole inheritor of their abandoned mansion on the banks of the Thames in London's fashionable Chelsea neighborhood, worth millions. Everything in Libby's life is about to change. But what she can't possibly know is that others have been waiting for this day as well--and she is on a collision course to meet them. Twenty-five years ago, police were called to 16 Cheyne Walk with reports of a baby crying. When they arrived, they found a healthy ten-month-old happily cooing in her crib in the bedroom. Downstairs in the kitchen lay three dead bodies, all dressed in black, next to a hastily scrawled note. And the four other children reported to live at Cheyne Walk were gone. In The Family Upstairs, the master of "bone-chilling suspense" (People) brings us the can't-look-away story of three entangled families living in a house with the darkest of secrets."--

Gifted musician Clemency Thompson is playing for tourists on the streets of southern France when she receives an urgent text message. Her childhood friend, Lucy, is demanding her immediate return to London. It's happening, says the message. The baby is back. Libby Jones was only six months old when she became an orphan. Now twenty-five, she's astounded to learn of an inheritance that will change her life. A gorgeous, dilapidated townhouse in one of London's poshest neighborhoods has been held in a trust for her all these years. Now it's hers. As Libby investigates the story of her birth parents and the dark legacy of her new home, Clemency and Lucy are headed her way to uncover, and possibly protect, secrets of their own. What really happened in that rambling Chelsea mansion when they were children?