Will o' Wisp
The Will o' Wisp appears as a ball of light that oftens lures adventurers into danger. It is not known if these are intelligent, or some manifestation of magic.
Will o' Wisps are creature that acts as "the sun" in The Underworld. It ingests Mana and excretes light, so is an absolutely key part of the subterranean ecology.
Without it, and the incursion of foreign environments through dimensional gateways, The Stygian Abyss would be a completely desolate place where life wouldn't exist.
But the presence of these factors has led to a thriving ecology to exist underground, allowing for rich flora and fauna, as well as towns housed by the three Factions (the Dwarves, Deep Elves, and Shamblers), Lizard Men, and more.
Previous Appearance[edit]
Wisps are known in the Stygian Abyss colonies of Ultima Underworld: The Stygian Abyss. Wisps in Britannia, and some of the worlds linked to that plane, have been reported to be intelligent creatures that form part of a collective.