Yobates, however, only read his son-in-law's request after receiving him as a guest and sharing a meal with him - so, according to the sacred law of hospitality, he could not kill him. However, driven by Preto's desire, Yobates entrusted him with an undertaking from which Bellerophon would hardly live: to kill the Chimera monster, which devastated the region by attacking herds. Bellerophon, however, with his horse, flew over the monster and killed Chimera, easily, with one stroke.
Yobates then charged him with several risky endeavors, trying in vain to kill him: he sends him out in battle against the warrior people of the Sólimos, which he defeats; then, against the Amazons, which also slaughter in large numbers. Desperate, Yobates organizes an ambush with some of the bravest of the Lydians, who perish, however, in the face of Bellerophon's bravery. Preto is convinced, then, that Bellerophon can only have divine origin and, justifying himself with the letter of his son-in-law, gives him the hand of his daughter, Filonoé or Anticleia, whose sons Isendro and Hipóloco would have, as well as Laodamia, Sarpedão's mother.