Master of Shadows Jayne Thorne, CIA Librarian Book 2

A lost grimoire. A dangerous new enemy. And a powerful magical weapon that could destroy the world. When Jayne's mentor goes missing on a top-secret mission, she is sent to Paris to find him, only to land in the crosshairs of a deadly terrorist organization and their diabolical weapon, a mysterious poison that renders their enemies powerless. Fighting to combat this new enemy, Jayne also struggles to make peace with her sister, who has been hiding the truth of their family history for years, and overcome difficulties with her wolf shifter boyfriend, who can't quite sync up with Jayne's new powers. Even worse, the terrorists demand she locate a necromantic grimoire in France, or they will kill her mentor. As Jayne hunts for the grimoire, she unlocks the secret to summoning the Master of Shadows—a long-dead master magician possessing a dark and destructive magic. With this lethal power unleashed, she must protect her team from the worst magical threats they've ever faced...or suffer the deadly consequences. This award winning romantic fantasy set in a unique magical world is perfect for fans of Leigh Bardugo, Linsey Hall, McKenzie Hunter, and Patricia Briggs!