Alex McKenna and the Academy of Souls - Alex McKenna, #2

No dark entities shall pass through this shield, as I will it ... so shall it be. Alex McKenna's plans for a couple of supernatural-free days are interrupted by an ominous visit from the ghost of seven-year-old Haven. The little girl needs his help and he's willing to risk his life to save her after-life. Despite his great-grandmother's warning, he choose to cross the bridge between the living and the dead to assist her.
The trip lands Alex and his girlfriend at a high school known as the Academy of Souls. The ghostly campus for dead teens is a safe place for those who are unable to complete their after-life journey. There they meet Ophelia, Haven's older sister, who has been searching for her for more than a century. To reunite the sisters, Alex must cross the teacherous terrain of the in-between realm known as the Underworld, and rescue Haven from the clutches of the Soul Gatherer.
A demonic spirit that feeds off of the souls of children. Could this be Alex's last case or will he keep his promise to Haven and save her soul before it's too late?