This river's bank serves as the hundred-year home of wandering souls who could not pay a toll after dying to Charon.
This entity can cause an immortal to lose his or her voice for either nine or eighteen years. This entity converges with similar entities named Cocytus, Phlegethon, and Acheron. Due to this entity, Semele was killed by Zeus and Phaeton was killed by Helios. Thetis attempted to provide immortality by dipping Achilles into this entity. This river's bank serves as the hundred-year home of wandering souls who could not pay a toll after dying to Charon. For 10 points, name this river of hate which, by encircling a certain place nine times, separates Earth from the Greek Underworld.
This entity can cause an immortal to lose his or her voice for either nine or eighteen years.
River {Styx}