Lost In The Shadows - Lost Shadows Saga, #1

Willow's life began the day she died. Given a second chance by the Grim Reaper himself, she is tasked with rescuing lost souls on Earth. The problem? She has no idea what she's doing. She enlists the help of Sydney and Scott, two unlikely friends with painful pasts of their own. They embark on a mission to find the lost shadows of two special children-Willow and Sydney's younger siblings. With ancient demons known as the Criscerean looking for the children, Willow must find them first-or lose them forever.