The Wandering Bayou is a magically-endowed landscape from the planet known as Blackbloom.
Few features on Blackbloom baffle thaumatologists and technoscientists alike more than the Wandering Bayou, a large patch of creeks, marshy lowlands, riparian forests and mangroves that seem to permanently evade the dry season. The Bayou moves around the globe in no predictable manner, disappearing from one place and gradually reappearing at another locale, where it stays for the duration of the wet or dark season. There’s no record that the Bayou has ever settled itself down either on Blackbloom Ridge (name pending) or the sentient cities. Its flora and fauna are well known, and the screeching water-puppy is sought for as a weapon component.
See also Geography of Blackbloom .