Twenty Palaces is a series of fantasy/mystery novels written by Seattle author Harry Connolly. He provides a first person narrative of each story from the point of view of the main character, Ray Lilly, as he recounts his adventures working for the Twenty Palace Society. Although the series is almost always placed in the urban fantasy genre, the stories so far have mostly taken place in rural areas in the Pacific Northwest of the United States, as well as Los Angeles.
Plot
In the Twenty Palaces universe, magic is real, along with supernatural creatures such as demons, spirits, and werewolves. Ray Lilly works for a mysterious organization of sorcerers known as the Twenty Palace Society. Their aim appears to be using any means necessary to keep magic out of the hands of anyone other than their own members. Their primary concern is with spell books, which are the source of magic, and with preventing magic users from summoning creatures known as predators from an otherworldly dimension called the "Empty Places."

Ray Lilly is living on borrowed time. He’s the driver for Annalise Powliss, a high-ranking member of the Twenty Palace Society, a group of sorcerers devoted to hunting down and executing rogue magicians. But because Ray betrayed her once, Annalise is looking for an excuse to kill him–or let someone else do the job.
Unfortunately for both of them, Annalise’s next mission goes wrong, leaving her critically injured. With the little magic he controls, Ray must complete her assignment alone. Not only does he have to stop a sorcerer who’s sacrificing dozens of innocent lives in exchange for supernatural power, he must find–and destroy–the source of that inhuman magic.

As a wealthy few gather to bid on a predator capable of destroying all life on earth, the sorcerers of the Twenty Palace Society mobilize to stop them. Caught up in the scramble is Ray Lilly, the lowest of the low in the society—an ex–car thief and the expendable assistant of a powerful sorcerer. Ray possesses exactly one spell to his name, along with a strong left hook. But when he arrives in the small town in the North Cascades where the bidding is to take place, the predator has escaped and the society’s most powerful enemies are desperate to recapture it. All Ray has to do is survive until help arrives. But it may already be too late.

Former car thief Ray Lilly is now the expendable grunt of a sorcerer responsible for destroying extradimensional predators summoned to our world by power-hungry magicians. Luckily, Ray has some magic of his own, and so far it’s kept him alive. But when a friend from his former gang calls him back to his old stomping grounds in Los Angeles, Ray may have to face a threat even he can’t handle. A mysterious spell is killing Ray’s former associates, and they blame him. Worse yet, the spell was cast by Wally King, the sorcerer who first dragged Ray into the brutal world of the Twenty Palace Society. Now Ray will have to choose between the ties of the past and the responsibilities of the present, as he and the Society face not only Wally King but a bizarre new predator.

When Ray Lilly was 13 years old, a handgun accident landed his best friend, Jon Burrows, in a wheelchair and turned Ray into a runaway and petty criminal. Fifteen years later, Ray returns home after a stint in prison; he’s determined to go straight, but he knows he can’t do that without making peace with his old friend.
What Ray doesn’t expect is to discover that Jon has just received a mysterious cure–not only is he out of his wheelchair, he seems stronger and faster than… well, pretty much anyone. Worse, his cure has drawn the attention of all sorts of attention: the media are camped out on his block, the police are investigating him for insurance fraud, and weird shadowy figures have begun to draw closer, figures who clearly do not mean to do Jon any good.