There are 6 books in the SPECTR series. The newest book is Summoner of Storms which came out in 2014.

"The SPECTR series is paranormal romance with bite, for readers who’re looking for something a little extraordinary." - The Novel Approach Reviews

What happens when an exorcist falls in love with a demon he's sworn to destroy?

Caleb Jansen’s life is going from bad to worse. First he’s possessed by…
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2
Master of Ghouls

Book cover of Master of Ghouls
Caleb Jansen's old life is in ruins after being possessed by the vampire spirit Gray. Now all Caleb wants is for Gray to be exorcised so he can adjust to living as a registered paranormal. Instead, District Chief Kaniyar of SPECTR offers him a new choice: be locked away for…

3
Reaper of Souls

Book cover of Reaper of Souls
When an incubus murders the powerful ally of an anti-paranormal senator, it's up to hotshot Federal exorcist John Starkweather to catch the demon before it can kill again. Fortunately, he has backup, in the form of his boyfriend Caleb, a telekinetic possessed by the vampire spirit Gray.

As the political…

4
Eater of Lives

Book cover of Eater of Lives
When a supernatural killer is implicated in a string of cannibalistic murders, federal exorcist John Starkweather must track the demon down with the help of his live-in lover, Caleb Jansen. Caleb is possessed by Gray, a vampire spirit who is a natural demon hunter.

Caleb's desire to find the killer…

5
Destroyer of Worlds

Book cover of Destroyer of Worlds
After becoming possessed by the vampire spirit Gray, telekinetic Caleb Jansen thought his situation couldn't get any worse. But that was before Graham Forsyth, head of SPECTR's sinister Research Division, took him into custody.

Forsyth claims he can exorcise Gray before the forty-day time limit runs out. But once at…

6
Summoner of Storms

Book cover of Summoner of Storms
Federal exorcist John Starkweather's life is in tatters. His best friend Sean betrayed him. SPECTR, the agency he viewed more as a surrogate family than an employer, wants him dead. His only allies are members of the mysterious organization called the Vigilant, whose motives remain in question.

The only thing…