Rey-Goor is also known as the Black Bayou: The forests extending from the Tangle to the Mephidross gradually become more oil-soaked and gloomy until the ground sloughs away into a stinking bog. The twisted and dying trees send metal root-spikes above the black water and act like islands of solid ground in the sucking vastness of the bayou.

The Bleak Coven Vampires are from the Rey-Goor, and Cystbearers are also found there.