Daughters of the Devil- By: Becca Kabelis

The final war is on! Mel’s real father, Leonard Bowden has once again kidnapped her daughter, Katy. He plans to train his granddaughter to become the most powerful witch to ever exist…and to rule the world by his side. As Mel and her friends try to find his location, she realizes that
Leonard is no longer human, he’s stronger than Satan and far more evil. Can they find the one weapon that could finally bring Leonard Bowden down? And do it before they find themselves trapped inside the bowels of Hell as they battle the vilest, most nefarious demon to ever walk amongst the living — and the dead.

Book comes signed by the author. 

Book 3 of the Ascent of the Witch Trilogy