Follows a fourteen-year-old American girl whose life unexpectedly transforms when she moves to London in 1952 and gets swept up in a race to save the world from nuclear war.
Teenagers Janie and Benjamin continue to explore the secrets of the Pharmacopoeia while Benjamin risks everything to find a way to connect with his father.
In 1350, a boy with a large hump on his back becomes the servant of a shadowy pilgrim on his way to Rome, who pulls the boy into a dangerous expedition across Europe to gather the seven precious relics of Saint Peter.