Zeus sent the goddesses to Paris, who judged that Aphrodite, as the "fairest", should receive the apple.
Paris, under the guise of a supposed diplomatic mission, went to Sparta to get Helen and bring her back to Troy.
Calchas said that Helenus knew the prophecies concerning the fall of Troy, so Odysseus waylaid Helenus.
Calchas had prophesied that the first Achaean to walk on land after stepping off a ship would be the first to die.
Description: Another prophecy stated that a son of the sea-nymph Thetiswith whom Zeus fell in love after gazing upon her in the oceans off the Greek coast, would become greater than his father. Godley translatorCambridge: