Achilles therefore seeks him out in the next battle and kills him with a spear - cast to his throat .
Odysseus 's spies learn of the prophecy that Troy will not fall if Troilos comes of age .
Achilles seeks Troy out in the next battle and kills Troy with a spear - cast to Troy 's throat .
Odysseus 's spies learn of the prophecy that Troy will not fall if Troilos comes of age .