Lily Proctor is the main character in the young adult fantasy series written by Jodi Meadows. She is a teenager who discovers she has the ability to travel between different worlds, known as "realms." Throughout her journey, Lily learns about her powers and the responsibilities that come with them, as well as the dangers she faces in these alternate realities. In the series, Lily encounters various characters, including Alden, a powerful ally, and Lily's counterpart in another realm. The story explores themes of identity, friendship, and the struggle between good and evil as Lily navigates her new life and the challenges that arise from her unique abilities.