Thetis and Peleus’ son is Achilles. Homer's Iliad tells of Achilles' deeds in the Trojan War. Achilles' wrath is the central theme of the book. Achilles withdraws from battle after he is dishonored by the Greek leader Agamemnon. As the Greek forces are beaten back by the Trojans, it becomes clear to all that only Achilles can save the day. This he does, when his friend Patroclus is killed in battle. Achilles storms onto the battle field killing all in his path, and finally killing Hector, leader of the Trojans.