Eleven-year-old Tilly Pages, who has found comfort in her grandparents' bookshop since her mother's disappearance, now learns that she can bookwander into any stories, and decides to seek her mother.
Tilly Pages and her friend Oskar journey to Washington, D.C., where she wanders inside the books at the Library of Congress and they try to stop a nefarious plan with some powerful help.
When eleven-year-old Tilly Pages joins Oskar and his family on a Christmas trip to Paris, she and her friend bookwander into the land of fairy tales, where someone--or something--is causing chaos.