Brenna Strachan is getting ready to turn 30. For a demon, this is the time of maturing. She'll gain all her demon powers and have eternity to learn to use them. But maturing has a drawback, for the next month, she's mortal.

Prophesy says she'll become one of the most powerful beings on Earth. There's a long list of beings who fear and loathe the power that Brenna might gain and are willing to take advantage of her status as a mortal.

However, when one of her own family members is involved in plotting her death, it's becomes about more than just survival.