Seventh-grader Tristan Strong tumbles into the MidPass and, with allies John Henry and Brer Rabbit, must entice the god Anansi to come out of hiding and seal the hole Tristan accidentally ripped in the sky.

Seventh-grader Tristan Strong feels anything but strong ever since he failed to save his best friend when they were in a bus accident together. All he has left of Eddie is the journal his friend wrote stories in. Tristan is dreading the month he's going to spend on his grandparents' farm. But on his first night there, a sticky creature shows up and steals Eddie's notebook. Tristan chases after it, and a tug-of-war ensues between them underneath a Bottle Tree. In a last attempt to get it away from the creature, Tristan punches the tree, accidentally ripping open a chasm into the MidPass, a volatile place with a burning sea, haunted bone ships, and iron monsters. Tristan finds himself in the middle of a battle that has left black American folk heroes John Henry and Brer Rabbit exhausted. In order to get back home, Tristan and these new allies will need to entice the god Anansi, the Weaver, to come out of hiding. Can Tristan save this world before he loses more of the things he loves?