His Dark Materials

The series is set in an alternative world where all humans have animal companions called dæmons, which are the manifestation of the human soul. The series follows the life of young Lyra who is an orphan living with the tutors at Jordan College, Oxford. Lyra discovers a dangerous secret that involves Lord Asriel and Marisa Coulter. In her search for her missing friend, Lyra also uncovers a slew of kidnappings and its link to the mysterious substance called Dust. (TheTVDB)