Classical Mythology and Ancient History > the Greek heroic legends (I) > the tenth year of the Trojan war (part II): Achilles back to war; his last deeds and his death > Achilles sweeps the battle-field; the gods descend from Olympus to partake in the battle (Iliad XX-XXII) > Achilles fights the river-gods Scamander and Simois; Achilles is assisted by Vulcan, who dries up the waters with scorching flames