Mrs. Marlowe's Mice by Frank Asch and Devin Asch*

Widow Mrs. Marlowe is an elegant cat who comes home from working at the library to an immaculate house.  Mice live with her and take care of her housework.  Mrs. Marlowe lives each day at risk of being discovered by the Catland Security Police.  Will she be able to outwit the Police when they come pounding on her door?
A very engaging story that is well written.
*Highly recommend.
-Borrowed from the library.