Callisto is known in the Greek myths as the nymph who betrayed Artemis. This is her story. Callisto, the daughter of the great Arcadian King Lycaon and the nymph Maia, has taken a sacred vow of purity, forsaking all others for Artemis, and attains the revered position of Bear Goddess among the nymphs. When she meets Kasin, a follower of Zeus and her sworn enemy, her life is shattered. Kasin is a centaur prince and one of few who can take human shape...