The adventure that began with Miss Peregrine's Home for Peculiar Children and continued in Hollow City comes to a thrilling conclusion with Library of Souls. As the story opens, sixteen-year-old Jacob discovers a powerful new ability, and soon he's diving through history to rescue his peculiar companions from a heavily guarded fortress. Accompanying Jacob on his journey are Emma Bloom, a girl with fire at her fingertips, and Addison MacHenry, a dog with a nose for sniffing out lost children.

They'll travel from modern-day London to the labyrinthine alleys of Devil's Acre, the most wretched slum in all of Victorian England. It's a place where the fate of peculiar children everywhere will be decided once and for all.