Marianne Curley

The first in a fantasy trilogy about Ethan, a boy whose lives as a regular student struggling with homework, and a Guardian of Time charged with fighting the forces of evil, begin to blur after his classmate Isabel is assigned as his apprentice.

When their 600-year-old mentor Arkarian is captured by the evil Marduke and banished to the underworld, sixteen-year-old Ethan and his apprentice Isabel risk everything to save him.