This is book number 5 in the Geronimo Stilton Reporter Graphic Novels series.
Sally Ratmousen, Editor-in-Chief of The Daily Rat and Geronimo Stiltons biggest journalistic rival, mysteriously disappears one afternoon on the way to her car after work. Her ace reporter, Simon Squealer, shows up at Geronimos 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 its a hoax just to generate headlines, Geronimo and Sally might be in over their whiskers as they have upset the wrong mobster.
Based on the animated series now streaming on Netflix!