Cavern Lurker Dragons are nocturnal ambush predators. Although small, they are very aggressive and will attack anything weak enough to be overpowered. Their preferred method of hunting is to lie in wait in a cave, burrow, or other small, enclosed space; when any potential prey passes they will lunge out to grab hold of the unsuspecting victim and drag it back into the lair. Cavern Lurkers have an odd aversion to sunlight and almost never venture out during the day. More commonly sighted are the odd piles of bones they stack near the entrance to their dens. Their mating call is a low-pitched bumping noise.

Dragons are highly-intelligent reptilian creatures that—from a human perspective, at least—appear to live forever. Many different varieties of dragon exist, each with their own unique qualities, habitats, and behavior. Adolescence in dragons is usually marked by the growth of a hatchling’s wings, although not all breeds of dragons grow wings and some breeds have other traits that indicate the beginning of maturation. In Galsreim, dragons and humans coexist peacefully.

One can always tell Harrbrinde's hidden lair from those of other Cavern Lurkers, even in the half-darkness of twilight that is their essence. The trophies they arrange outside their caves are always placed with a certain purpose, never thrown haphazardly, creating a crude yet strangely beautiful sculpture as a mark of their presence. Harrbrinde, however, simply leaves these bones and other treasures pillaged from her prey strewn every which way in the mouth of her den. She is not too keen on keeping herself tidy either—in fact she rarely washes herself so that her scales are covered with layer upon layer of old filth and grime, giving her a rather unpleasant odor similar to the rotting stench of Vampires. The mess of bones is more than enough to deter others of her breed and her general lack of cleanliness repels those who can look past this so she has few friends. But she doesn't mind, preferring her solitude.