Martin's Mice

Martin is a farm kitten who likes to keep mice as pets, despite the mockery from his siblings, Robin and Lark, and the disapproval of his mother, Dulcie Maude.

He keeps a pregnant pet mouse he met named Drusilla in a hidden tub before she gives birth to eight baby mice.

When Martin's baby mice eventually grow old enough, they complain to him and want to leave the tub, even though they recognize the dangers of the outside world.

Having learnt about freedom and responsibility, when he finds Drusilla's new home after returning to the farm, he leaves her and Cuthbert to make their own lives, treating her as a friend rather than a pet.

Out of respect for his son, Pug notes that he has also given Drusilla's family a password- 'Martin's mice'- to use to prevent him accidentally eating any of them.