Be careful who you let in. 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. Early one morning on the shore of the Thames, DCI Samuel Owusu is called to the scene of a gruesome discovery. When Owusu sends the evidence for examination, he learns the bones are connected to a cold case that left three people dead on the kitchen floor in a Chelsea mansion thirty years ago. Rachel Rimmer has also received a shock—news that her husband, Michael, has been found dead in the cellar of his house in France. All signs point to an intruder, and the French police need her to come urgently to answer questions about Michael and his past that she very much doesn’t want to answer. After fleeing London thirty years ago in the wake of a horrific tragedy, Lucy Lamb is finally coming home. While she settles in with her children and is just about to purchase their first-ever house, her brother takes off to find the boy from their shared past whose memory haunts their present. As they all race to discover answers to these convoluted mysteries, they will come to find that they’re connected in ways they could have never imagined. In this masterful standalone sequel to her haunting New York Times bestseller, The Family Upstairs, Lisa Jewell proves she is writing at the height of her powers with another jaw-dropping, intricate, and affecting novel about the lengths we will go to protect the ones we love and uncover the truth.