What is the main conflict in Taltos: Lives of the Mayfair Witches by Anne Rice?

Ash is a tall man, more than seven feet, and is soon identified as a Taltos which is a near-extinct, immortal, superhuman race. Ash is a wealthy owner of a doll manufacturing company and feels very lonely, believing himself to be among the last of his kind and believing that there are no females remaining that are of mating age.