A mysterious fog has settled over the town, and with it comes a terrifying side effect: people are losing control of their impulses. Ordinary residents are suddenly acting on their darkest urges, putting themselves—and everyone around them—in danger.
For federal supernatural agent Eden Fury, this is more than another unusual case.
The culprit is an impetus demon, a rare creature capable of manipulating the desires and instincts of its victims. But finding a demon hidden inside an unnatural fog is only the beginning. Eden and her wizard assistant Neville must uncover how it arrived, determine what it wants, and stop it before the town descends into chaos.
And the investigation forces Eden to push her own supernatural abilities further than ever before.
The more magic she uses, the more powerful she becomes—and the more she fears becoming the very kind of creature she has spent her life resisting.
Then there is Sawyer Fox.
The human police chief has no idea what Eden is hiding, yet their attraction is becoming impossible to ignore. A dangerous encounter leaves them sharing a kiss neither can easily forget. But Eden knows that getting closer to Sawyer could expose every secret she has fought to protect.
With a demon feeding on human impulses and her own emotions becoming harder to control, Eden may finally discover that the most dangerous temptation is the one she wants most.