Sea Monster

But it chanced that the city was then in distress consequently on the wrath of Apollo and Poseidon. For desiring to put the wantonness of Laomedon to the proof, Apollo and Poseidon assumed the likeness of men and undertook to fortify Pergamum for wages. But when they had fortified it, he would not pay them their wages. Therefore Apollo sent a pestilence, and Poseidon a sea monster, which, carried up by a flood, snatched away the people of the plain. But as oracles foretold deliverance from these calamities if Laomedon would expose his daughter Hesione to be devoured by the sea monster, he exposed her by fastening her to the rocks near the sea. Seeing her exposed, Hercules promised to save her on condition of receiving from Laomedon the mares which Zeus had given in compensation for the rape of Ganymede. On Laomedon's saying that he would give them, Hercules killed the monster and saved Hesione. But when Laomedon would not give the stipulated reward, Hercules put to sea after threatening to make war on Troy.


- Apollodorus, Library, Book 2, Chapter 5, Section 9