It was the day of the school field day, and Amina couldn't wait to join in the fun. As she walked across the playground, something on the ground caught her eye - a shiny, smooth rock that seemed to sparkle in the sunlight. Intrigued, Amina bent down to take a closer look.

Suddenly, a group of students gathered around, each claiming the rock was theirs. Amina tried to explain that she had found it, but the other kids wouldn't listen. She knew she had to solve this mystery before the field day activities began.

Amina decided to investigate. She asked her teacher, Mrs. Johnson, if she had seen anyone drop the rock. Mrs. Johnson said she hadn't noticed anything, but suggested Amina ask her classmates if they knew anything about it.

Amina approached her friends, Jamal and Layla, and told them about the shiny rock. To her surprise, Jamal admitted that he had brought the rock to school, thinking it would be a good luck charm for the sack race. Layla then revealed that she had been eyeing the rock earlier and wanted to keep it for herself.

With the mystery solved, Amina knew what she had to do. She gathered everyone and explained that the rock belonged to Jamal, who had brought it to school first. The other students understood and agreed to let Jamal keep the shiny rock as his good luck charm for the field day events.