Gaby has a task from the school newspaper and takes an interview with a prisoner about his everyday life in a jail. The prisoner from cell 13, Heppner, provides her readily with information. But as before he is silent as a fish about the fact to what happened with the loot he got after a bank robbery and whether he had an accomplice in that crime. Shortly after, Heppner escapes from prison! And TKKG is mixed up in a new case again. Clues lead to a horror shop, to confirmed detective novel readers, illiterates and finally to an abandoned bunker... (Adventure Legends)