Hellfire Wyverns are so named for their foul tempers and fiery visages. Their social structure places all females above all males, due to superior physical characteristics and violent dispositions. Forced subservience of the males causes them to become vicious, petty, antisocial, and passive-aggressive compared to the aggressive and social females. However, orphaned hatchlings raised by foster parents of another species can develop surprisingly even tempers and mellow dispositions, proving that their defining unpleasant nature is, in fact, a learned behavior.

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.

Ukolebavka was Sledovat's first daughter after a long line of sons. In Sledovat's family, the female is the head of the family. However, Sledovat chose Ukolebavka's father, Pravomoc, not because he was submissive like many Hellfire Wyverns, but because she saw a worthy mate in him. With him as her mate, she risked having her first daughter carry Pravomoc's blood, but to her great relief, Ukolebavka turned out as a Hellfire, thus carrying her mother's blood and legacy on.