I bought this book on a whim, not expecting it to be very good. I was WRONG. This is a wonderful book.

From the back:
Physicist Portia Harding's life is grounded in facts. There's nothing that can't be explained by logic and science...until she travels with her best friend to England and accidentally summons an etheral virtue who bequeaths her gift of weather control to Portia.

Now Portia is waling around with a literal clour over her head and a heart-stoppinly handsome maniac trying to kidnap her. But Theandre North is no run of the mill lunatic. He's a nephilim the son of an angel - who needs portia's help to change his fate. Problem is, Portia's down-to-earth attitude frustrates beings from both heavenly and hellish realms, and gets Theo turned into a vampire. But at least he has Portia to satisfy his newfound hungers...and possibly save his soul.