Carsten Tsara is not overly intelligent and his memory is only average; not great assets for a private detective, but that is his job. Follow his investigations in the "Lesehefte - Krimis" as he tries to solve some difficult cases.

The "Krimis" are graded readers for intermediate level offering illustrations to support understanding, exercises to test comprehension, tips on developing reading strategies and monolingual explanations of vocabulary, all in addition to the lively storylines which are bound to hold students' interest. Audio-CDs with a complete reading of each text are also available.