Once upon a time, there lived two friendly mice in a cozy mouse hole in the wall of an old house. The two mice were Six the Mouse and Thirteen the Mouse.

Six the Mouse was a bit of a worrier, always fretting about the future and what kind of danger might lurk outside the mouse hole. Thirteen the Mouse, on the other hand, was much more adventurous and had a tendency to explore outside the mouse hole.

One day, Six the Mouse mustered up the courage to join Thirteen the Mouse on one of his explorations. Six was amazed by all the exciting things they saw, from the bright light of the sun to the strange smells of the garden. It was on this exploration that Six and Thirteen first met.

The two became fast friends, and Six quickly lost his worries. Thirteen taught Six how to survive in the outside world, and Six taught Thirteen the importance of being cautious.

The two friends were inseparable, and soon, the whole mouse hole knew of Six and Thirteen's adventures. Whenever Six and Thirteen explored the garden, they would always find something new and exciting.

Six and Thirteen's friendship was a great example to all the other mice in the mouse hole. They taught them that even the most cautious of creatures can find adventure, and the most adventurous of creatures can find friendship and safety.