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.

Twothought and Flytwice, being a Two-Headed Dragon with an untidy lineage, was chased from the Old Featherwing Weyr in the Great War, along with others of long and "ugly" lines. Following Nightburner into exile, they and their mate Secondwing and Doublescales have set up a second home away from their old lands. They miss their old nook in the cave, of course, but with Secondwing and Doublescales and their hatchling Smallthought and Littlewing, Twothought and Flytwice thinks they can learn to survive.

Still a deeply romantic dragon, Twothought and Flytwice are sure to make time for their mate in this time of danger and new living. Their family of three has managed to stick together better than many others of the exiled Fallen Weyr.