The Trojans brought the Trojan Horse into their city against the advice of Cassandra (given the gift of prophecy by Apollo, but condemned to never be believed for not returning his love) and Laocoön (because two serpents came out of the water and strangled him and his sons, which the Trojans saw as a punishment for attacking the horse with a spear). Inside the giant wooden horse were Greek soldiers, who, as night fell, disembarked from the horse and opened the city gates, thus sealing the fate of Troy.Virgil, Aeneid 2.77 He was also an Achaean spy who told the Greeks when the soldiers in the horse had begun their fight.
