Split Dragons use their sharp teeth and wings to hunt large animals and rarely eat plants. They are intelligent dragons who enjoy mental challenges, preferably alone; Split Dragons are normally solitary except during mating season. When mating, many dragons come together in a group to raise their eggs and hatchlings. These groups tend to be very noisy—reminiscent of a thunderstorm—and last only until the hatchlings are capable of surviving on their own.

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.

Tulio and Miguel are the trickster guardians of a mountain pass. All dragons can come and go as they please, but humans must first answer Tulio and Miguels riddles before they are allowed through the narrow pass and onto the other side. There is one riddle per traveler and if they guess wrong, they are lunch. As the day starts, Tulio and Miguel ask simple riddles, like "What gets wetter the more it dries.". As the day goes on they move on to harder ones, each on trickier than the last. When the queue line is down to one, they pull out their toughest and final question. No one has ever answered it correctly. It is "What sounds like a cat, looks like a biscuit, tastes like stars, and feels like dirt." Usually the person turns around and goes home, not wanting to risk guessing and dying. But there is always someone who thinks they know the answer, and that someone is always eaten, for there is no answer. It's just a way to insure that Tulio and Miguel get a snack before bedtime.