The Vengeance Season by Libby Doyle
To keep her safe, he will confront his evil father. To keep him strong, she will overcome horrors no human has ever had to face.
After explosive events at the winter solstice, Zan is content to sink back into her job with the FBI. She could have guessed her normal times wouldn’t last. Barakiel loves her and Lucifer — his ruthless father — knows it.
With the help of Zan and the traveler adept Pellus, Barakiel learns his father is searching for a way to navigate the dark veins of the cosmos. If he succeeds, Zan will be in grave danger. Lucifer could appear at any moment in the Earthly Realm or on the manicured terraces of Covalent City.
The solution is clear. Barakiel and his allies must convince the Covalent leadership to march on the Destructive Realm. They must take the war to Lucifer’s Keep.
Warning: This book contains foul language, violence, explicit sex, and sexual violence.