Nightspark

"Several months after the ghosts freed the children of Battersea and uncovered Tabatha Margate's sinister experimentation on ghostclouds and cloudghouls, Luke Smith-Sharma struggles to divide his time between learning the ropes of being a ghostcloud and studying to become a detective. But not everyone made it out of the power station, and as he tries to adjust to 'normal' life by pursuing his dreams, the guilt over his friends left behind is eat...