Geronimo Stilton is getting into the movies when he is invited by an old filmmaker friend, director E.J. Sprocket, to visit the set of Block Cheddar 4, starring Jack Vole. Convinced that this could make for an interesting article he brings Thea, Benjamin, and Pandora along. But soon, they discover that it's not all glitz and glamour as strange happenings have been plaguing production causing the film to go off course. Will Geronimo's acting career...

"Sally Ratmousen, Editor-in-Chief of The Daily Rat and Geronimo Stilton's biggest journalistic rival, mysteriously disappears one afternoon on the way to her car after work. Her ace reporter, Simon Squealer, shows up at Geronimo's door with the troubling news... and reveals that notorious mobster Barry the Moustache is behind her disappearance. Is he telling Geronimo the truth or is this fake news? If it's a hoax just to generate headlines, Geronimo...

The famous Prince Nogouda pays a visit to New Mouse City and ace reporter Geronimo Stilton has an exclusive interview. Meanwhile, at the Mouse Museum, the rare breed of Shufongfong lizards have been kidnapped! Could like Prince and his kingdom in the Bandel jungle have anything to do with this? Geronimo, Thea, Trap, and Benjamin are on the case!