Ellie Mailer can’t sleep. When she tries, the darkness over her bed sticks its fingers down her throat and squeezes. Her uncle’s footsteps rock the floorboards above her head. And there are bad storms coming through every night. All these things she can handle. But when a man with darkness where his face should be comes to her door, she enters a world of shadows and secrets and death, where she’ll be all that lies between her little sister Georgie and a creature that enters homes and eats the hearts of those who live within. This is the story of the summer Ellie cut off her uncle’s fingers and heard her best friend die. This is how she learned what lies in darkness.