A rich man in a certain town once owned a dog and a cat, both of which were very useful to him. The dog had served his master for many years and had become so old that he had lost his teeth and was unable to fight any more, but he was a good guide and companion to the cat who was strong and cunning.

The master had a daughter who was attending school at a convent some distance from home, and very often he sent the dog and the cat with presents to the girl.

One day he called the faithful animals and bade them carry a magic ring to his daughter.