a five-fingered dragon

Dragons are one of the many sentient species native to Ui. They come in at least two breeds: "four-fingered", which are the traditional treasure-stealing, vicious dragons of human legend, and "five-fingered", the species with which Joe Stone has been involved in the past. Five-fingered dragons are peaceable, flightless and amenable to technology, and can speak and understand human language. According to a member of one five-fingered dragon colony, the dragons have no need for doctors or healers, presumably because they do not fall ill.