Pierce grew up thinking he was the only survivor of a car crash that killed his entire family when he was 10 years old. The truth of how they died - and how he survived - was something much different. Everything Pierce thought he knew comes unravelled when a morning run brings him face-to-face with truths very few people know: thirteen worlds intersect with our own at a place called the Seams. Most people cannot remember them because their minds are incapable of comprehending the Seams or anything that comes from there. But a few people are different. They remember. Now, more than anything, Pierce wants to become a Seam Warden. They enforce the laws protecting those other-world citizens who live here peacefully, and protect our world from those creatures that would prey upon a human population that cannot remember them. But as Pierce trains to become a Seam Warden, he uncovers a traitor selling advanced technology to those who can't possibly understand it. When that technology endangers an old friend's life, Pierce has to violate orders and risk his only chance at becoming a Seam Warden to find the traitor and save his friend before it's too late.