"Twelve-year-old Theo Tatterly's ability to see ghosts is a useful skill in a house full of dead relatives, but it makes him a loner at school, where ghosts eternally pester him for help. For Theo, life is easier on the periphery. When his first failed exorcism portends an end to the Tatterly line, Theo must bring together his entire family -- living and dead -- to save the home they've lived in for generations and maybe the world." -- "In a magical...