Vanaheim

Vanaheim is the name of the setting of the Fantasy Impromptu series, serving as the center stage for most of the narrative. It is treated as a planet for the purposes of the narrative, but Vanaheim more accurately refers to the land masses surrounding a rotating black hole.

Before the Omniscience
Vanaheim is, in reality, a black hole with an unknown mass. Due to the unstable nature of the black hole, its previous consumption of numerous stars and the rotating tidal forces that power the beast, Vanaheim constantly leaks energy at an immense rate.

It is currently orbiting a single star of approximately 12 Solar masses. Vanaheim has a "moon" much like Earth, and for the purposes of the series is also known as a moon. Within the system are five other planets: Asgard, Helheim, Jotunheim, Muspelheim and Niflheim. Of the five, the latter two planets are locked in a close orbit, at times brushing past each other in a cataclysmic rain of flaming hot and icy cold gases.

Omniscience and Civilisation
At some point in the distant past, a space-travelling race known as the Omniscience harvested the energy of the black hole using a mechanism similar to the Penrose Process to power their worldly creations and start a new civilisation on its various land masses. Among them were the early remnants of humans, who were assimilated into the Omniscients' empire.

The unusual physical properties and high energy outputs present in Vanaheim's ergosphere creates phenomenae on Vanaheim's various landmasses that defy the laws of physics, phenomenae described in earlier eras of Vanaheim's existence as "magic".