It's a dark and sad morning. In the detective office there is a visitor. A woman, about 45 years old, with red eyes. Maybe she cried all night.

“My son says he didn't do that and I believe him. But the police found something. They want to put him in prison. But he didn't do that! Please, Detective Peters, help him! You are our last hope.”

Detective Peters is a retired policeman. He is quiet. He knows about the theft in the local Historical museum. It is a big problem.

Long ago, archeologists found an old manuscript near the town. It is the main treasure of the local Historical museum. Many tourists come to see it. Tourist traffic means a lot to local businesses. But now the treasure is gone. Someone stole it.

Detective Peters also knows that the police are very busy. They want to finish cases fast when they think that everything is clear. A new museum worker, young Johnny, was arrested. The police found a tool in his bag. They think he used it to stop the alarm.

The police say: “No one broke into the museum. The cameras didn't see strangers. Maybe Johnny did it.”

Detective Peters thinks for a moment. Then he says: “Okay, I will help.”