Stalking the Unicorn

Detective John Justin Mallory finds himself in an alternate Manhattan, one filled with goblins and elves and leprechauns -- and an incredibly valuable unicorn that must be found before sunrise or his client's life is forfeit. Along the way he picks up a partner and a very unique cat. This is the first of the three Eohn Justin Mallory novels (the othes are Stalking the Vampire and Stalking the Dragon). First published in 1987, this was an urban fantasy novel before there -were- urban fantasy novels.