A psychological thriller about a night of babysitting that turns fatal and a girl determined to figure out if the gas leak was an accident, perfect for fans of E. Lockhart's We Were Liars. “A masterclass in suspenseful storytelling”—Karen M. McManus, #1 New York Times bestselling author of One of Us Is Lying Ella was supposed to be out with friends. But a blinding headache and a twist of fate leave her babysitting instead. Only, when she arrives, the house is quiet, the door is wide open—and the air reeks of gas. She manages to call 911, but not everyone survives. As Ella struggles to recover, cracks begin to form in the investigation. Whispers, memories, and buried motives point to something sinister. The gas leak might not have been an accident after all. And someone might be out to kill Ella next. The door's open, the gas is leaking, and nothing is what it seems—your next book club obsession starts here.