"Ostfriesenhölle" - the 14th volume of the Ostfriesen crime series featuring Commissioner Ann Kathrin Klaasen by number-one bestselling author Klaus-Peter Wolf. Perpetrator or victim? Has the missing YouTube star been kidnapped, or does he have two lives on his conscience? During a cycling trip on Langeoog, young Cosmo Schnell suddenly collapses and dies shortly thereafter in his mother's arms. Sabine Schnell is convinced that her son's best friend is responsible. The two were YouTube stars and were inseparable. In a fit of rage, she kidnaps the boy. A large-scale search begins, and the island is scoured in every corner. Then a body is found – a woman. And now Ann Kathrin Klaasen faces the question: Is the police actually looking for a teenage perpetrator or a desperate young man?.