Cat and Mouse in Partnership

A cat and a mouse, contrary to the custom of their kinds, become friends, such good friends that they decide to share a home. That they might have something to fall back on in time of need, they buy a pot of fat and hide it away in a nook of a church for safekeeping. After a short time, the cat tells her housemate that one of her relations has given birth and that the mouse's friend has been asked...