Whyborne’s Endicott relatives have returned to collect on the promise he made to help them take back their ancestral manor from an evil cult. In exchange, they’ll give him the key to deciphering the Wisborg Codex, which Whyborne needs to learn how to stop the masters. To that end, Whyborne, his husband Griffin, and their friends Iskander and Christine travel to a small island off the coast of Cornwall. But when they arrive at Balefire Manor, Whyborne must not only face the evil within the ancient mansion, but the painful truth about his own destiny.

Widdershins has been unusually quiet for months. But now a mysterious creature from the Outside is on the loose, assassinating members of the town's old families by draining their blood. Whyborne and Griffin set out to solve the mystery -- but as the evidence piles up, the police begin to suspect Whyborne himself is the murderer.

When Griffin's past collides with his present, will it cost the lives of everyone he loves? Between the threat of a world-ending invasion from the Outside and unwelcome revelations about his own nature, Percival Endicott Whyborne is under a great deal of strain. His husband, Griffin Flaherty, wants to help - but how can he, when Whyborne won't tell him what's wrong?

Guilt-ridden after the massacre of his family, Isaac Salvatore turned to binge drinking to escape the pain. Now 24 years old, Isaac is a recovering alcoholic woefully out of practice in the magical arts, leaving his fire affinity hanging on the edge of disaster. After a month of rehab, he returns to Beacon Hill and his family, determined to remain sober, learn to control his magic, and figure out a plan for his life that doesn't involve drinking.

What happens when an exorcist falls in love with the demon he's supposed to destroy? Unregistered paranormal Caleb Jansen only wants a normal life. But when the demon-hunting spirit Gray accidentally possesses him, Caleb finds himself in a countdown for his very existence.

Caleb has spent the last six months adjusting to life possessed by the vampire spirit Gray and hunting demons with their boyfriend, federal exorcist John Starkweather. Unfortunately, the other agents of SPECTR view Caleb and Gray as a ticking time bomb. Their frustration mounts as the new district chief puts more and more restrictions on them. John wants to help, but he has problems of his own. Charleston is in the grip of an outbreak of demon possession, and the human members of SPECTR have been pushed to the brink.

Between his father's sudden - and rather suspicious - generosity, and his own rash promise to help Christine plan her wedding, Percival Endicott Whyborne has quite enough to worry about. But when the donation of a mysterious codex to the Ladysmith Museum draws the attention of a murderous cult, Whyborne finds himself in a race against time to unlock its secrets first. Griffin has a case of his own: the disappearance of an historic map, which quickly escalates to murder.

Linus Baker is a by-the-book case worker in the Department in Charge of Magical Youth. He's tasked with determining whether six dangerous magical children are likely to bring about the end of the world. Arthur Parnassus is the master of the orphanage. He would do anything to keep the children safe, even if it means the world will burn. And his secrets will come to light. 

Sorcerer Percival Endicott Whyborne and his husband, Griffin Flaherty, have enjoyed an unprecedented stretch of peace and quiet. Unfortunately, the calm is shattered by the arrival of a package from Griffin's brother, Jack, who has uncovered a strange artifact while digging for gold in Alaska. The discovery of a previously unknown civilization could revive the career of their friend, Dr. Christine Putnam, or it might kill them all if the hints of dark sorcery surrounding the find are true.

Introverted scholar Percival Endicott Whyborne wants nothing more than to live quietly with his lover, ex-Pinkerton detective Griffin Flaherty. Unfortunately, Whyborne's railroad tycoon father has other ideas, namely hiring Griffin to investigate mysterious events at a coal mine. Whyborne, Griffin, and their friend Christine travel to Threshold Mountain, a place of dark legend even before the mine burrowed into its heart.

Griffin Flaherty wants nothing more than to create a perfect Valentine's Day for his lover, Dr. Percival Endicott Whyborne. Dinner at a fancy restaurant, an evening at the theater, and a romantic interlude at home should do the trick. But a new client with an urgent case puts Griffin's plans in jeopardy. A magic talisman has been stolen, and if it isn't returned by sundown, disaster will befall not only on the thief but the innocents around him. Can Whyborne and Griffin track down and return the amulet by nightfall, or will dinner reservations become the least of their worries?

Repressed scholar Percival Endicott Whyborne has two skills: reading dead languages and hiding in his office at the Ladysmith Museum. After the tragic death of the friend he secretly loved, he's ruthlessly suppressed any desire for another man. So when handsome ex-Pinkerton Griffin Flaherty approaches him to translate a mysterious book, Whyborne wants to finish the job and get rid of the detective as quickly as possible. Griffin left the Pinkertons following the death of his partner, hoping to start a new life. But the powerful cult that murdered Glenn has taken root in Widdershins, and only the spells in the book can stop them.

Between his bullying father and dissolute brother, Percival Endicott Whyborne has quite enough problematic family members to deal with. So when his sister returns to Widdershins asking for help solving the mystery of a derelict ship, Whyborne is reluctant to get involved. Until, that is, a brutal murderer strikes, leaving Whyborne and his lover Griffin no choice but to take the case. The investigation leads them deep into a conspiracy of blackmail, murder, and darkest sorcery.

The devil you know is never the one you should trust. Special Agent Patrick Collins is dispatched to Chicago, chasing a lead on the Morrigan’s staff for the joint task force. Needing a cover for his presence in the Windy City, Patrick is ordered to investigate a politician running for mayor. In the lead up to Election Day, not everything is what it seems in a city where playing to win means appeasing the gods first and the electorate second. But Chicago brings its own set of problems outside the case: a standoffish local god pack, a missing immortal, and Patrick’s twin sister. 

After losing the family fortune to a fraudulent psychic, inventor Henry Strauss is determined to bring the otherworld under control through the application of science. All he needs is a genuine haunting to prove his Electro-Séance will work. A letter from wealthy industrialist Dominic Gladfield seems the answer to his prayers. Gladfield’s proposition: a contest pitting science against spiritualism, with a hefty prize for the winner. The contest takes Henry to Reyhome Castle, the site of a series of brutal murders decades earlier.