Revival

Jack Grenard and the demon Anya are on the run, searching for a cure for her curse while staying one step ahead of those who want them dead. The mystery leads them around the globe, each clue revealing more about the history of the original demons and the secrets behind the humans who fought them.
Hot on their trail is Jack's partner Cam Macarro, who just wants her best friend back. Unable to keep up with Anya, who can shift time, Cam dives head first into ICDM history, hoping to unravel the mystery before they do. But the more she discovers, the more she begins to see the truth behind ICDM and who's really in charge.
Revival is the second book in the Demon Spring Trilogy, which readers say is "perfect blend between urban fantasy and real life struggles" and "electric from start to finish."