Will was a curious fourth-grader who loved solving mysteries. One day, as he was walking home from school, he stumbled upon a note that read, "The treasure is hidden in the old oak tree." Intrigued, Will decided to investigate.

Will knew he couldn't do this alone, so he recruited his friends Amina, Sophie, and J.J. to help. The four friends scoured the neighborhood, searching for the mysterious oak tree. After hours of searching, they finally found it at the edge of the park.

With excitement, the group gathered around the tree, looking for any clues that might lead them to the treasure. Will noticed a small hole in the trunk, and when he peered inside, he saw a glimmer of something shiny. Carefully, he reached in and pulled out a small, ornate box.

The friends gathered around, eager to see what was inside. As Will opened the box, they were amazed to find a collection of rare coins and a note that read, "Thank you for finding my treasure. I've been searching for it for years." The group celebrated their success, proud of their teamwork and problem-solving skills.