Paroled from Heaven (Paranormal Detectives Series Book 8)

Death is not the end.
The Lieutenant of Hell is dead. The vampiric Empire has fallen, and the Paranormal Investigative Division is barely surviving. With no one controlling the demons and humanity left vulnerable, it's about to become a literal Hell on Earth.
But Heaven has a plan. Angels can't step in to fight, and only humans can save humanity. With a little grace, and a lot of power, there's one way to stop the demonic onslaught and impending rise of Lucifer: a temporary parole from Heaven. Who says death is forever?