Super Short Summary

In Library of Souls by Ransom Riggs, teenage "peculiars" Jacob and Emma, along with their dog Addison, escape a time loop to rescue kidnapped friends from the wights. Their search leads them to a wight-controlled village, where they discover the drugged peculiars and organize a rescue mission. Bentham, who initially aids them, ultimately betrays them to his brother, Caul, forcing Jacob to use his powers for soul retrieval in a dangerous encounter at the Library of Souls.