Who put laser-eyed robot librarians in charge of class discipline? What's with the new pedal-powered desks? And what does it all have to do with the mysterious goings-on in the cellar? Spy-detectives Tuchus and Topps reckon it's got to be something to do with Pamela Stranglebum and her sinister company, Minerva Industries. With the help of their Scottish gargoyle chum Gregor, can Lenny and Agatha uncover the truth before it's too late . . .