Worry Box by Chris Panatier

An unsettling horror story with a mysterious twist from a celebrated voice in horror. Perfect for fans of Paul Tremblay's A Head Full of Ghosts. The Martins need a new home for their growing family. For Alison, Nathan, daughter Dru, and foster child Lailah, it’s love at first sight when they see the house in Tumbling Hills. It even has a cozy attic, which is great for Lailah; she needs a quiet place to be alone when her intrusive thoughts creep in. (crack an egg into the coffee machine) The family gets settled. The house is perfect, and so is the timing – Lailah’s adoption will soon be finalized. (push your sister down the stairs) But as the date approaches, her intrusive thoughts get worse, and Lailah fears she’s losing control. (burn them alive in their beds)