Taenarus. According to Appolodorus, Library 2.5.10-11 , Taenarum in Laconia is "the mouth of the descent to Hades." Styx. According to Greek myth, the river Styx divides earth from the underworld, Hades. Aemathian Oeta. The complicated and fascinating story of Hercules's death on Mt. Oeta is told in Ovid's Metamorphoses 9.89-181