Iliad 21.328–384

In order to save the endangered Achilles, Hērā now induces her son Hephaistos to join the fray and to fight actively against the river god Scamander. Since Hephaistos is god of fire, he is the elemental antithesis of Scamander as god of water, that is, as the local god who embodies the principal river that waters the plain of Troy. So now the fight between fiery hero and streaming god escalates into a cosmic conflict between the elements of fire and water. In the end, then, fire wins over water, but now Hērā induces Hephaistos to stop his fight with Scamander.