Corpsemouth - John Langan

A Halloween haunted house becomes a conduit to something ancient and uncanny.

The effigy of a movie monster becomes instrumental in a young man's defence against a bully. A family diminishes while visiting a seaside town, leaving only one to remember what changed. Lured in by fate, a father explores a mysterious tower, and comes face to face with the creature imprisoned within.

Mourning his death, a young man travels to his father's hometown, seeking closure, but finds himself beset by dreams of mythic bargains and a primaeval, corpse-eating titan.