By day, Violet is a supposed charlatan running a potion shop in New Orleans and catering to drunk tourists who want to take a walk on the wild side. By night, she's a Potion Master, a rare, magical being whose shop straddles the portal to Earth and Hell, slinging potions to magical beasts who only come out at night. She's also the protector of both, a neutral being who carefully navigates the Accords between oblivious humans and the creatures who wouldn't mind snacking on them. Unfortunately for both sides, Violet is terrible at her job.

Lucifer's efforts to secure the angel's cooperation are proving unsuccessful until a chance meeting ends with an invitation to attend a forum. There's only one caveat. Violet's presence is required, and she must offer a demonstration of her powers. Lucifer is against it. Clara wants to destroy them all. Dave is . . . Dave. And the enigmatic ruler of the dragons doesn't care about any of it. He's chosen to pursue Violet with a single-minded focus. But whether he wants her for her or her powers remains unknown.

Someone paid the vampire king’s creepy son to turn me into one of the bitey undead. I’m not hanging about to find out who or why. The vampires want me to stay with them for one hundred years of indentured servitude but I have this thing about following orders so I ran from the streets of London to the wilds of Alaska. I have an eidetic memory and a can-do attitude. I can-do anything to get away from the vampire king. So when the Sheriff of Portlock, a hidden paranormal town, invites me to be his assistant, I say sure thing. It beats servitude hands down.

Mary Frances Talbot—Frankie—is a necromancer, probably. Hard to say since she never met her parents. She can see the dead, talk to the dead, and a few other things that aren't strictly legal. It's fine. No worries. As long as she doesn't get caught. The whole not getting caught thing was going well until Samuel Harrow blew back into town wearing a Savannah Police Department uniform. He might be a witch, but he hates magic. He's not a fan of Frankie either. Which explains why he's her ex.

Deputy US Marshal Cait Keane is a Witch with a Badge—and a Dragon for a partner. The Boston office tour will have to wait—her first day on the job in her new appointment is canceled to pursue a federal fugitive, a magical with a penchant for fire. She'll need her gun and her wand to take him down. What will her team think of having a magical on board? When a federal judge is killed, she discovers she's in the middle of a territorial battle between criminal organizations. The killer is a magical, or working with one, which makes Cait the perfect Marshal to take them down.