Sinon, for this was the spy's name, said that he had been left behind by the malice of Odysseus, and he told them that the Greeks had built the Wooden Horse as an offering to Athena, and that they had made it so huge in order to keep it from being moved out of the camp, since it was destined to bring triumph to its possessors.
At this, the joy of the Trojans was redoubled, and they set their wits to find out how they might soonest drag the great horse across the plain and into the city to ensure victory. While they stood talking, two immense serpents rose out of the sea and made towards the camp. Some of the people took flight, others were transfixed with terror; but all, near and far, watched this new omen. Rearing their crests, the sea-serpents crossed the shore, swift, shining, terrible as a risen water-flood that descends upon a helpless little town. Straight through the crowd they swept, and seized the priest Laocoön where he stood, with his two sons, and wrapped them all round and round in fearful coils. There was no chance of escape. Father and sons perished together; and when the monsters had devoured the three men, into the sea they slipped again, leaving no trace of the horror.
The terrified Trojans saw an omen in this. To their minds, punishment had come upon Laocoön for his words against the Wooden Horse. Surely, it was sacred to the gods; he had spoken blasphemy, and had perished before their eyes. They flung his warning to the winds. They wreathed the horse with garlands, amid great acclaim; and then, all lending a hand, they dragged it, little by little, out of the camp and into the city of Troy. With the close of that victorious day, they gave up every memory of danger and made merry after ten years of privation.
That very night Sinon the spy opened the hidden door of the Wooden Horse, and in the darkness, Odysseus, Menelaus, and the other chiefs who had lain hidden there crept out and gave the signal to the Grecian army. For, under cover of night, those ships that had been moored behind the island had sailed back again, and the Greeks were come upon Troy.
Not a Trojan was on guard. The whole city was at feast when the enemy rose in its midst, and the warning of Laocoön was fulfilled.
Priam and his warriors fell by the sword, and their kingdom was plundered of all its fair possessions, women and children and treasure. Last of all, the city itself was burned to its very foundations.
Homeward sailed the Greeks, taking as royal captives poor Cassandra and Andromache and many another Trojan. And home at last went Fair Helen, the cause of all this sorrow, eager to be forgiven by her husband, King Menelaus. For she had awakened from the enchantment of Venus, and even before the death of Paris she had secretly longed for her home and kindred. Home to Sparta she came with the king after a long and stormy voyage, and there she lived and died the fairest of women.
But the kingdom of Troy was fallen. Nothing remained of all its glory but the glory of its dead heroes and fair women, and the ruins of its citadel by the river Scamander. There even now, beneath the foundations of later homes that were built and burned, built and burned, in the wars of a thousand years after, the ruins of ancient Troy lie hidden, like mouldered leaves deep under the new grass. And there, to this very day, men who love the story are delving after the dead city as you might search for a buried treasure.