This series takes heroes from Greek mythology and describes what adventures they might have had in their youth. They're made for Young Readers, but likely enjoyable to anyone interested in both fantasy and mythology. The series, so far, includes:
Odysseus in the Serpent Maze
Hippolyta and the Curse of the Amazons
Hippolyta must flee from her home to save her baby brother, but she soon finds that in order to restore peace she may have to sacrifice another brother.
Atalanta and the Arcadian Beast
When Atalanta's adopted father is killed by a strange beast, her bear-brother from youth comes to comfort her. She and Urso give up hunting the beast until it threatens people she knows from a small village near her forest home.
Jason and the Gorgon's Blood