An almost strictly nocturnal breed, Ciriax Lindwyrms are especially attuned to the moons’ cycles. They spend nights patrolling the edges of their territory, aggressively fending off intruders while they feast on their prey. After two or three nights of feeding, often around the time of at least one full moon, Ciriax Lindwyrms retreat to the recesses of their cave or underground homes. These dragons make it particularly difficult to travel on nights that are well-lit by moonlight, often to an unsuspecting adventurer’s dismay.

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.

Two-headed dragons are unique enough to deserve a separate classification from ordinary dragons. They have two necks, two brains, two mouths, but one stomach and one main body. The two heads usually work together, but there are times when they will fight each other, snapping back and forth. Their unique anatomy prevents them from breeding with single-headed dragons.

Naishoneku (the two heads are referred to as "Naisho" and "Neku" by family) occupies a living cave deep in the Sylvain clan caverns, and though he usually leaves the caves at night, his family members rarely see him. He has a fascination with the different nighttime sounds made by nocturnal creatures.  Due to years spent listening and observing, he claims to be able to hunt without needing to move, by luring prey to him by mimicking certain noises. Despite possessing different demeanors, the two heads aid each other during the nighttime sessions. Naisho is patient and can listen intently to the biomes at night for hours, while Neku is often restless but is an excellent imitator. The two heads alternate sleeping, and are only awake at the same time when necessary.