Two Bad Mice reflects Potter's deepening happiness in her professional and personal relationship with Norman Warne and her delight in trouncing the rigors and strictures of middle class domesticity. For all the destruction the mice wreak, it is miniaturized and thus more amusing than serious. Potter enjoyed developing a tale that gave her the vicarious thrill of the sort of improper behaviour she would never have entertained in real life.
The tale begins with "once upon a time" and a description of a "very beautiful doll's-house" belonging to a doll called Lucinda and her cook-doll Jane. Jane never cooks because the doll's-house food is made of plaster and was "bought ready-made, in a box full of shavings". Though the food will not come off the plates, it is "extremely beautiful".