"Geronimo Stilton, top reporter for The Rodent's Gazette, has a reputation of breaking the top news stories first to the citizens of New Mouse City. But lately, Sally Ratmousen of rival paper 'The Daily Rat' has been leaking Geronimo's secret scoop. Can Geronimo keep the lid on a surprise celebrity guest to the city's 100-year celebration or will Sally rat him out?"--Publisher marketing.

In one week Sabrina will be eleven-years-old and she would really like to get her estranged parents and her older sister Nadine together for the celebration, especially since the black butterfly landing on her locket has convinced her that she is going to die; Sabrina and her friend Pepper come up with a bucket list, and enlist Nadine's help--but aspiring reporter Nadine is working on a story about the Philippines' war on drugs, and she has uncovered...

The Thea Sisters help the famous editor of a fashion magazine escape aggressive reporters, landing themselves and the Mouseford Academy newspaper an exclusive interview with her in the process.