Once a proud demon of the night sky who carried nightmares to humans, Tenrael has spent decades in captivity as the star attraction of a traveling carnival. He exists in miserable servitude to men who plunk down ten dollars to fulfill their dark desires. Charles Grimes is half human, half… something else. For fifteen years he’s worked for the Bureau of Trans-Species Affairs, ridding the country of dangerous monsters. When his boss sends him to Kansas to chase a rumor about a captive demon, Charles figures it’s just another assignment. Until he meets Tenrael.

Someone-or something-is murdering young men in San Francisco. Clay White has been fired from the Bureau of Trans-Species Affairs, but he’s determined to track down the killer. When he comes across a vampire named Marek, Clay assumes he’s caught the perp. But the encounter with Marek turns out to be more complicated than Clay expected, and it forces him to deal with his own troubled past and murky psyche. As Clay discovers, sometimes the truth doesn't come easy-and the monsters are not who we expect.

Alone in a cell and lacking memories of his past, John has no idea who—or what—he is. Alone on the streets of 1950s Los Angeles, Harry has far too many memories of his painful past and feels simply resignation in facing his empty future. When Harry is given a chance to achieve his only dream—to become an agent with the Bureau of Trans-Species Affairs—all he has to do is prove his worth. Yet nothing has ever come easy for him. Now he must offer himself and John as bait, enticing a man who wants to conquer death. But first he and John must learn what distinguishes a monster from a man—and what a monster truly wants.

An agent for the Bureau of Trans-Species Affairs? That’s the best job in the world. And it’s enough for Terry Brandt, who doesn’t need personal relationships complicating his life. His newest assignment puts him undercover, investigating a Hollywood agent who may have some evil tricks up his sleeve. Edge is not the man he appears to be. Although he’s a member of the Hollywood agent’s security staff, his true situation is darker and deeper than that. Ordered to seduce the new prospect, Edge finds himself caught in conflicting loyalties. Haunted by their pasts and tied up in secrets, neither Terry nor Edge can afford to allow passion to interfere with duty. And with danger dogging them, it’s impossible to envision a future together.

Vietnam veteran Kurt Powell’s addiction almost cost him everything, but a job as federal agent with the Bureau of Trans-Species Affairs helped him find sobriety and purpose. Now he tracks down dangerous paranormal creatures as well as humans who abuse their magical powers in illegal ways. Sent from Belfast to the United States as a boy, Desmond Hughes later fell into a disastrous relationship that led to horrific murders. He’s spent seventeen years in a bleak prison with few comforts and no hope of release. A new mission throws Kurt and Des together in a desperate attempt to prevent disaster. Sometimes what’s long been lost can still be found, but the road to redemption is never easy—and a mutual attraction may not ease the way.

World War I veteran Thomas Donne is new to San Francisco. Always a stoic man, shell shock and a lost love have nearly turned his heart to stone. No matter—a private eye has no room for softness. Almost broke, he takes on what appears to be a simple case: finding a missing young man. As a magician and medium, Abraham Ferencz cons his audiences into believing he can cheat death and commune with their dearly departed. Although his séances are staged, the spirits are very real, and they’ve brought him almost more pain than he can bear. When Donne’s case becomes complicated and the bodies start to pile up, he and Ferencz must fight their way through a web of trickery and lies. The truth is obscured by the San Francisco fog, and in their uncanny world, anyone can catch a bullet.

Charles Grimes hasn’t celebrated Christmas in years, so spending December in San Francisco while keeping an eye out for monsters sounds like an easy way to earn a few bucks. He should have learned by now that nothing is ever easy—not his job, not his existence as the son of an angel, and not his relationship with a formerly captive demon. It’s going to take more than a few rounds of Jingle Bells to make Charles feel the joys of the season.

Life isn’t always easy for a Bureau agent who’s also a dragon. Ever since Ralph Crespo was trapped in human form, he’s been going through the motions at a job he once loved. Maybe that’s why the Bureau chief seems to have demoted him to messenger. But this time a letter delivery allows Ralph to meet Anton Steinmann, and Ralph’s life takes a turn toward the unexpected. Anton loves his remote home with its extensive caves. He’s less fond of his leadership position, however, and definitely doesn’t want the offer Agent Crespo hands him. Then Anton is kidnapped and tortured. Someone wants him dead and he doesn’t know why. How can anyone be true to himself in a world where he doesn’t really belong? Perhaps Ralph and Anton can find the answer together—if they survive long enough.

Art Gundersen did not make it as an agent with the Bureau of Trans-Species Affairs. But when Chief Townsend orders him out of the lab and into the mountains of northern California to collect evidence from a murder scene, Art’s happy to go. He looks forward to tromping around in the wilderness—and finds he enjoys the company of the forest technician who discovered the hiker’s corpse surrounded by sasquatch footprints. Jerry Humboldt lives a somewhat reclusive life in the fire lookout tower. Nobody comments much on his enormous size. Or his unusually hairy feet. Then Art shows up, and Jerry is forced into some new realizations. As Art and Jerry interact, they discover some long-past connections as well as some very present dangers. It’s a risky equation: an awkward not-agent, a virginal “wild man” of the forest, and a multiple murderer—with the Bureau’s help six hundred miles away.

Agent Dash Cooke likes simple assignments: annihilate the dangerous monsters and move on. He likes a simple life too: a furnished apartment that he switches out for a new one every few years and no messy personal connections. Then his boss gives him an assignment that’s not simple at all. Reports claim that a beautiful old house in Sacramento is haunted by a poltergeist, but Dash soon discovers a very different type of spirit. Henry will be destroyed if Dash evicts him. And suddenly Dash’s life has become very complicated indeed.

Follow the rules. That’s what Con Becker does, even when it means denying his own needs. Because one thing he’s learned is that breaking the rules gets you into trouble. It alienates you from your family. It brings you face-to-fangs with death. So Con sticks to his lab in the basement of the Bureau, examining evidence, updating his spreadsheets, and enduring the pain of his damaged body. Until Chief Townsend sends Con on a field mission with Agent Isaac Molina. The task seems simple—recruit allies from among the coyote shifter community—but nothing is easy when your alluring partner has no patience for protocols and regulations. And when monsters attack from the darkness. When obligation collides with desire, Con must decide how to fulfill his mission, keep himself and Isaac alive… and cope with the demons that seek to consume him. And in order to succeed, he just might have to break some rules.