Set in contemporary London, Jack Palmer & The Unspeakable Thing is a story of magic and madness and monsters, feuding Elizabethan sorcerers, and the dread being known only as The Unspeakable Thing.
A swarm of mutant mice on the London Underground leads troubled teen Jack Palmer and glamorous new friend Coral to a terrifying encounter with a shambling creature more dead than alive. The beast seeks a forgotten Elizabethan map hidden in the depths of the British Museum. But why?
Soon the adventurous teens are in way over their heads: each clue they uncover leads them deeper into mystery and mayhem. Can they defeat The Unspeakable Thing or is the world about to be plunged into eternal darkness?