When the war had already lasted ten years, and the Greeks were despondent, Calchas prophesied to them that Troy could not be taken unless they had the bow and arrows of Hercules fighting on their side. On hearing that, Ulysses went with Diomedes to Philoctetes in Lemnos, and having by craft got possession of the bow and arrows he persuaded him to sail to Troy. So he went, and after being cured by Podalirius, he shot Alexander.
After the death of Alexander, Helenus and Deiphobus quarrelled as to which of them should marry Helen; and as Deiphobus was preferred, Helenus left Troy and abode in Ida. But as Chalcas said that Helenus knew the oracles that protected the city, Ulysses waylaid and captured him and brought him to the camp;
and Helenus was forced to tell how Ilium could be taken, to wit, first, if the bones of Pelops were brought to them; next, if Neoptolemus fought for them; and third, if the Palladium, which had fallen from heaven, were stolen from Troy, for while it was within the walls the city could not be taken.
On hearing these things the Greeks caused the bones of Pelops to be fetched, and they sent Ulysses and Phoenix to Lycomedes at Scyros, and these two persuaded him to let Neoptolemus go. On coming to the camp and receiving his father's arms from Ulysses, who willingly resigned them, Neoptolemus slew many of the Trojans.
Afterwards, Eurypylus, son of Telephus, arrived to fight for the Trojans, bringing a great force of Mysians. He performed doughty deeds, but was slain by Neoptolemus.
And Ulysses went with Diomedes by night to the city, and there he let Diomedes wait, and after disfiguring himself and putting on mean attire he entered unknown into the city as a beggar. And being recognized by Helen, he with her help stole away the Palladium, and after killing many of the guards, brought it to the ships with the aid of Diomedes.