

Anna and Ben are friends. They like to play with toys and books. One day, they find a big bag in the park. The bag is heavy and has a lock. They want to see what is inside the bag.
They try to open the lock, but they cannot. They try to shake the bag, but they cannot. They try to cut the bag, but they cannot. They are sad and angry. They want to solve the problem.
They think hard and have an idea. They go to the playground and find a big slide. They put the bag on the top of the slide and push it down. The bag goes fast and hits the ground. The lock breaks and the bag opens.
Anna and Ben are happy and curious. They look inside the bag and see many things. They see books, clothes, toys, and money. They think the bag belongs to someone serious and important. They wonder who it is and why they left it in the park.
They decide to be good and honest. They take the bag to the police station and tell the officer what they found. The officer is surprised and grateful. He says they are very smart and brave. He says they solved a big mystery. He says the bag belongs to a lady who lost it on the bus. He says the lady is very worried and will be very happy to get it back.
Anna and Ben are proud and glad. They feel good for helping the lady and the officer. They get a reward and a hug. They go back to the park and play with their own toys and books. They are still friends and like to solve problems.
