Mrs. Thomasina Tittlemouse is a "most terribly tidy little mouse always sweeping and dusting the soft sandy floors" in the "yards and yards" of passages and storerooms, nut-cellars, and seed-cellars in her "funny house" amongst the roots of a hedge.

The Flopsy Bunnies, while raiding a rubbish heap of rotting vegetables, fall asleep and are captured by Mr. McGregor who places them in a sack. While McGregor is distracted, the six are freed by Thomasina Tittlemouse.

Mrs. Tittlemouse is revealed to be a very tidy wood mouse. Her determination to keep her house clean is put to the test by some untidy uninvited guests.

In The Tale of Mrs. Tittlemouse, she tries to keep her home tidy. She turns away unwanted visitors: beetles, a ladybird, and a large spider seeking shelter from the rain. Along one of her passageways she runs into Babbitty Bumble, a bumblebee, and in a storeroom she comes across a nest of four more bees, whom she is unable to remove.

Mrs. Tittlemouse sends the uninvited ladybird off with a variant of the traditional nursery rhyme Ladybird Ladybird: "Your house is on fire, Mother Ladybird! Fly away home to your children!". She then runs into a spider who asks her: "Beg pardon, is this not Miss Muffet's?", a reference to the nursery rhyme Little Miss Muffet.

Upon returning to her parlour, she finds the neighbour from the drain below, Mr. Jackson the toad, sitting in her rocking chair, wet and dripping water onto the floor. He stays over dinner, but declines to eat any of the food Mrs. Tittlemouse offers him; she mops up his footprints as he rummages for honey. When Mr. Jackson finds the bees he pulls out their nest.
After Mr. Jackson departs, Mrs. Tittlemouse spends a fortnight on cleaning all the mess in her home. She uses twigs to make her front door narrower. She then holds a party for five other little mice—Mr. Jackson, being no longer able to fit through the door, sits outside drinking honey dew.

All published appearances of Mrs. Tittlemouse from before January 1, )-(95)}} are public domain in the US.

Some notable appearances are listed below:

* The Tale of the Flopsy Bunnies (1909)
* The Tale of Mrs. Tittlemouse (1910)

*[https://en.wikipedia.org/wiki/ Wikipedia]
*[https://en.wikipedia.org/wiki/The_Tale_of_Mrs._Tittlemouse The Tale of Mrs. Tittlemouse on Wikipedia]
Category:1909 Debuts
Category:Beatrix Potter - Creator
Category:British Characters
Category:Animated Characters
Category:Literary Characters
Category:Frederick Warne & Co. Characters
Category:Anthropomorphic Animals
Category:Television Characters
Category:Female Characters
Category:Miniature Characters
Category:Mouse Characters
Category:Mouse Family Characters
Category:Rodent Characters
Category:Toys
Category:Protagonists
Category:Heroes
Category:Puzzle Characters
Category:Playing Card Characters