A workbook suitable for use in elementary school in grade 4 as well as in secondary education in grades 5-7. The worksheets contain tasks at various levels for differentiation and are ideally suited for use in independent work or self-directed learning. Boys and girls embark on a quest to hunt down perpetrators and motives, assist victims, and bring every crime scene to life with childlike innocence, vitality, and a large dose of humor. In German lessons, didactic trace securing and skill acquisition are essential: characters, motives, plot development, and dramaturgy are the focus of investigations, which take place in both complex stories and simple plots at two different levels. With additional audio files available for download! 56 pages.