“Book Descriptions:Alternate-cover edition can be found here
Nineteen-year-old Myla Lewis has transformed into the Great Scala, the only being with the power to move human souls to Heaven or Hell. Although she no longer fights demons in the Arena, Myla still has tons of ass-kicking to do as she redefines the afterlife and rebuilds Purgatory's government. Unfortunately, her world falls apart faster than she can put it together. An enemy out of Myla's past is sapping her powers, making her weaker by the day. Even worse, her angel bound-love Lincoln has mysteriously disappeared. As her true enemy becomes clear, Myla discovers that all the after-realms are at risk. After losing so much power, does she still have the strength to save her world?” DRIVE