Acheron Cocytus and Phlegethon both flowed. The Roman poet Virgil called it the principal river of Tartarus, from which the Styx and Cocytus both sprang. The newly dead would be ferried across the Acheron by Charon in order to enter the Underworld. The Suda describes the river as "a place of healing, not a place of punishment, cleansing and purging the sins of humans". According to later traditions, Acheron had been a son of Helios and either Gaia or Demeter, who had been turned into the Underworld river bearing his name after he refreshed the Titans with drink during their contest
Iphigenia in Tauris (Goethe) Journey". Beloved by the gods for his wisdom, the demigod Tantalus was once invited to their fellowship. Becoming boisterous whilst celebrating with them, he began to boast, and he stole the gods' nectar and ambrosia, their food of immortality. When the gods came to see Tantalus in turn, he tested their omniscience by offering his own son Pelops to them as their meal. Offended by the deception, the gods banished Tantalus from their community to Tartarus and cursed him and his family, the House of Atreus. This became known as the curse on the Tantalids, in which descendants from Tantalus