Adelaide Henry carries an enormous steamer trunk with her wherever she goes. It’s locked at all times. Because when the trunk opens, people around Adelaide start to disappear. The year is 1915, and Adelaide is in trouble. Her secret sin killed her parents, forcing her to flee California in a hellfire rush and make her way to Montana as a homesteader. Dragging the trunk with her at every stop, she will become one of the “lone women” taking advantage of the government’s offer of free land for those who can tame it --- except that Adelaide isn’t alone. And the secret she’s tried so desperately to lock away might be the only thing that will help her survive the harsh territory.

When Apollo Kagwa’s father disappeared, all he left his son were strange recurring dreams and a box of books stamped with the word IMPROBABILIA. Now Apollo is a father himself --- and as he and his wife, Emma, are settling into their new lives as parents, exhaustion and anxiety start to take their toll. Irritable and disconnected from their new baby boy, at first Emma seems to be exhibiting signs of postpartum depression, but it quickly becomes clear that her troubles go even deeper. Before Apollo can do anything to help, Emma commits a horrific act and vanishes. Thus begins Apollo’s odyssey through a world he only thought he understood, to find a wife and child who are nothing like he had imagined.

On his first night at the New Hyde Hospital's mental ward, Pepper witnesses an impossible vision: the Devil appears in the guise of an old man with a bison's head and murderous intent. It’s no delusion --- the Devil roams the halls of New Hyde, terrorizing its patients when the sun goes down. Pepper teams with three other strangely loveable patients to try to kill the monster that's been stalking them. But can the Devil die?