A horrific family tragedy sends sixteen-year-old Jacob journeying to a remote island off the coast of Wales, where he discovers the crumbling ruins of an old orphanage that was home to children who were more than just peculiar, but possibly dangerous--and who may still be alive. Illustrated with vintage found photographs.

Time is running out for the Peculiar Children. With a dangerous madman on the loose and their beloved Miss Peregrine still in danger, Jacob Portman and Emma Bloom are forced to stage the most daring of rescue missions. They'll travel through a war-torn landscape, meet new allies, and face greater dangers than ever. Will Jacob come into his own as the hero his fellow Peculiars know him to be? (Features more than 50 all-new Peculiar photographs.)

Miss Peregrine, Emma and her peculiar friends are back in Florida with Jacob Portman. They discover a subterranean bunker that belonged to Jacob's grandfather, Abe. Clues to Abe's double life as a peculiar operative start to emerge, revealing secrets long hidden in plain sight. Jacob begins to learn about the dangerous legacy he has inherited - truths that were part of him long before he walked into Miss Peregrine's time loop.