Die drei??? kids 100 - 100 Stunden

Commissioner Reynolds is puzzled: Who wrote the blackmail letter to the three ??? Justus, Peter, and Bob have exactly 100 hours to meet the blackmailer's demands! In the story, the hour countdown is ticking down - creating a sense of urgency. There are many tasks and puzzles to solve. During their investigation, the detectives visit familiar places in Rocky Beach. They encounter Uncle Titus, Aunt Mathilda, Skinny Norris, and many old acquaintances. Then the trail leads the detectives to the prison. Will Justus, Peter, and Bob catch the villain at the last minute? The 100th volume of the "The Three ??? Kids" series.