A challenger to Olympus
After his victory over the Titans, ZeusGod: Zeus. King of the gods, lord of the sky and the thunderbolt faced another threat to his rule. In Hesiod’s Theogony, Gaia, the Earth, bore Typhoeus—also called Typhon—to Tartarus. A hundred serpent heads rose from the monster’s shoulders. Fire flashed from their eyes, while their voices shifted between speech, roaring, barking and hissing. He could have ruled gods and mortals, the poet says, had Zeus failed to act. Hesiod, Theogony 820–835.
The thunderbolt battle
Zeus answered with thunder and lightning. Olympus shook beneath him, the sea surged, and the noise reached the depths beneath the earth. The monster’s fire and the god’s thunderbolts shook the whole world.
Zeus struck Typhon and burned his many heads. The defeated monster crashed down, scorching the surrounding earth. Zeus then cast him into Tartarus. Hesiod also connects Typhon with destructive winds, extending the monster’s violence into the storms that threaten ships and sailors. Hesiod, Theogony 836–880.
Another ancient version
The later Library attributed to Apollodorus tells a longer story. Typhon briefly overpowers Zeus, cuts the sinews from his hands and feet, and leaves him helpless in a cave. Hermes and Aegipan recover the sinews and restore them, allowing Zeus to renew the pursuit.
Instead of ending in Tartarus, this account ends in Sicily. Zeus throws Mount Etna over the fleeing monster, and the volcano’s eruptions are associated with the thunderbolts beneath it. Pseudo-Apollodorus, Library 1.6.3.