"The Young Wizards" is a fantasy book series written by Diane Duane. It follows the adventures of two young protagonists, Nita Callahan and Kit Rodriguez, who discover their magical abilities and the existence of a hidden world of wizards. They learn to use spells and navigate challenges while protecting the universe from various threats. The series explores themes of friendship, responsibility, and the balance between good and evil. As Nita and Kit grow in their magical skills, they encounter a variety of creatures and characters, including wizards, aliens, and mythical beings, all while facing moral dilemmas and personal growth.