Allie Beckstrom, tome 4Devon Monk2010

Allison Beckstrom is committed to her work tracing illegal spells. Now, there's an apocalyptic storm bearing down on Portland, and when it hits, all the magic in the area will turn unstable and destructive. To stop it from taking out the entire city, Allie and her lover, the mysterious Zayvion Jones, must work with the Authority-the enigmatic arbiters of all things magic-and take a stand against a magical wildstorm that will obliterate all in its path...

Titre original : Allie Beckstrom, book 4: Magic on the Storm (2010)