Pegasus another was at Troezen. Hesiod relates how Pegasus was peacefully drinking from a spring when the hero Bellerophon captured him. Hesiod also says Pegasus carried thunderbolts for Zeus. There are several versions of the birth of the winged stallion and his brother Chrysaor in the far distant place at the edge of Earth, Hesiod's "springs of Oceanus, which encircles the inhabited earth, where Perseus found Medusa: One is that they sprang from the blood issuing from Medusa's neck as Perseus was beheading her, similar to the manner in which Athena was born from the head of Zeus. In another version,
Perseus the only mortal Gorgon, Medusa, whose gaze turned people to stone. Ovid's account of Medusa's mortality tells that she had once been a woman, vain of her beautiful hair, who was raped by Poseidon in the Temple of Athena. In punishment for the desecration of her temple, Athena had changed Medusa's hair into hideous snakes "that she may alarm her surprised foes with terror". Athena instructed Perseus to find the Hesperides, who were entrusted with weapons needed to defeat the Gorgon. Following Athena's guidance, Perseus sought the Graeae, sisters of the Gorgons, to demand the whereabouts of the Hesperides, the