The Traveler is the title belonging to Freya Beauchamp. The function of the Traveler is to astral project their thought bodies to a desired location and the main power of the Traveler is Astral Projection.

Battle against the King

While fighting against her grandfather, Freya was referring to herself as "the Traveler" and cast a spell next to Wendy, Joanna and Ingrid, and managed to defeat the King.