Black City Dragon — Richard A. Knaak

A historical urban fantasy set in Prohibition-era Chicago, which combines action, mystery, and romance against a backdrop of gangland wars and the threat of supernatural horror. For sixteen hundred years, Nick Medea has guarded the gate between our world and Feirie, preventing the Wyld--the darkest Feirie of all--from coming into Chicago to find human prey. But since he defeated Oberon, more and more Wyld have been slipping through. Nick and his Feirie companion, the shapeshifter, Fetch, have been busy hunting them down. Nick keeps coming across the Dacian Draco, the sign of his ancient enemy Galerius, including a tattoo worn by a human thug. Unfortunately, every trail ends as if years old. Claryce, Nick's reincarnated love, has narrowly escaped two attempts on her life, and when Nick sees her wearing a broach with the Draco on it, he knows they must look more deeply into her former lives. With Wyld and gangsters wreaking havoc in Chicago, Nick and Claryce must confront the secrets of their pasts if they are to have any hope of finding out Galerius's plans before it's too late to stop them. Nick will need the help of all his friends, both human and Feirie, and the powers of the dragon within him, to keep Galerius from endangering the gate, Chicago, and all of humanity.