"Lenny among Ghosts" is a captivating ghost story for children set in a mysterious boarding school. The protagonist, Lenny, arrives at Castle Röckenpöppel in the middle of the night and witnesses an unusual feast where the students eat, but nothing is visible. With the sunrise, the magnificent castle transforms into a dilapidated ruin inhabited by ghosts. These ghosts learn the art of haunting at night, and Lenny finds himself in a situation from which there is no escape. To survive, he must face the challenges and become a ghost himself. This thrilling tale sparks the imagination and offers an entertaining reading experience for children aged 9 and up.