In Victorian England, Jacob discovers the Library of Souls, a hidden collection that holds the key to saving his peculiar friends and the entire peculiar world. Inside the library, he encounters a ymbryne, a powerful ancient creature who possesses the ability to control time and manipulate souls. 

With time running out, Jacob must unlock his own peculiar abilities and confront his darkest fears to rescue his friends from the clutches of the malevolent wights. 

Filled with heart-pounding action, breathtaking twists, and the power of friendship, the third chapter of the Miss Peregrine’s Peculiar Children series is a thrilling adventure that tests the limits of courage and the strength of peculiar bonds.