|Environment||Any land (Shadow Plane)|
Source: Bestiary 3, pg(s). 260
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- See also: Gloomwing
Tenebrous worms are the larval forms of gloomwings, a species of moth-like outsiders with animal intelligence native to the Shadow Plane. Despite this, young tenebrous worms are much more dangerous than adult gloomwings.
Gloomwings lay their eggs in living creatures; when they hatch, the emerging tenebrous worms will devour the host as their first meal. When a tenebrous worm bites prey, its saliva melts flesh into edible shadows; after a tenebrous worm eats enough, it will seek out a dark area to pupate in a cocoon, which exudes darkness, before maturing as a gloomwing after several days.