Bøger i Binder of Doom serien

"Something is stealing machine parts from all over Stermont, including a wrecking ball from a local construction site, and Alexander and his fellow monster hunters, Rip, and Nikki, fear that it is building a Stermont-smashing machine--so the friends must use the resources of the summer maker program at the library to stop this monster, and perhaps even solve the mystery of who is leaving monster trading cards where the Super Secret Monster Patrol can find them."--Publisher's description.

Alexander Bopp is the leader of the Super Secret Monster Patrol, a club whose members are sworn to protect the town from monsters. There haven't been monsters to fight for months... But then Alexander finds a super-creepy monster card! Are the monsters back? The S.S.M.P. is about to find out!