One day, thirty strangers arrived in the small town of Cleary, Ohio. And five boys vanished during a baseball game in the park. Bizarre tunnels have appeared under the town, leading to a place no earthly eye has seen before. Eventually the children will return, but the once-peaceful town of Clearly may wish they’d stayed away. For they will not be alone. They will bring with them unimaginable creatures, monsters only visible in the eerie light of…the yellow moon.