Agamemnon and his powerful host set sail from Aulis; but being ignorant of the locality and the direction, they landed by mistake in Teuthrania, a part of Mysia near the river Caicus, and began to ravage the country under the persuasion that it was the neighborhood of Troy. Telephus, the king of the country, opposed and repelled them, but was ultimately defeated and severely wounded by Achilles. The Greeks, now discovering their mistake, retired; but their fleet was dispersed by a storm and driven back to Greece. Achilles attacked and took Scyrus, and there married Deidamia, the daughter of Lycomedes. Telephus, suffering from his wounds, was directed by the oracle to come to Greece and present himself to Achilles to be healed, by applying the scrapings of the spear with which the wound had been given; thus restored, he became the guide of the Greeks when they were prepared to renew their expedition.
The armament was again assembled at Aulis, but the goddess Artemis, displeased with the boastful language of Agamemnon, prolonged the duration of adverse winds, and the offending chief was compelled to appease her by the well-known sacrifice of his daughter Iphigenia. They then proceeded to Tenedos, from whence Odysseus and Menelaus were dispatched as envoys to Troy, to redemand Helen and the stolen property. In spite of the prudent counsels of Antenor, who received the two Grecian chiefs with friendly hospitality, the Trojans rejected the demand, and the attack was resolved upon. It was foredoomed by the gods that the Greek who first landed should perish: Protesilaus was generous enough to put himself upon this forlorn hope, and accordingly fell by the hand of Hector.