When Gage Jordan's uncle dies inside a magic circle, and his cousin Jeff can't communicate, no one has the answers. Was Gage's uncle trying to protect Jeff, or was he working black magic? Some claim there's a generational curse while others whisper about demonic possession. The only thing Gage knows for sure is they're in danger. Demons are prowling the Vermont countryside, hunting for him and Jeff as the souls who got away. Gage's father can't help, and he's forbidden Gage to talk to the only person who might know how to save them. His only protection is one of the threads God uses to hold together the world, given to him by two strange creatures that couldn't explain more. The trouble is, this thread doesn't come with a user manual, and while Gage struggles to figure it out, there's a life debt to be paid—and both boys are running out of time.