Kyle Keeley and his brothers are united by one thing: the games invented by Mr. Lemoncello, games that have captivated all the kids in Alexandriaville.

When Kyle discovers that Mr. Lemoncello has designed the new library in town, he offers invitations for a night spent in the building with games galore to celebrate its grand opening. The boy is determined to be among the twelve lucky ones accepted for the inauguration.

But, as it turns out, the stakes are much higher than just getting into the library: the real challenge is to escape from the ultra-secure and mystery-filled building.