There’s an angel-killer on the loose, and Stella’s at the top of the hit list. When the Department of Metaphysical and Naturalistic Detection (D.M.N.D.) sends Stella to solve a murder case, the last thing she expects is the victim to be an angel…let alone one branded with her mark. Then again, seeing as she’s Lucifer, Heaven’s first fallen angel, is it really so surprising? It seems someone is heaven-bent on invading earth to rid away evil, starting with Stella and her people. And if she doesn’t find the person responsible soon, her friends will be the first to die in this supernatural cleansing. As it turns out, the fallen aren’t the bad guys after all. But can Stella save them without revealing the prophecy she doesn't want anyone to know about?