A new girl named Lily has her first day at Milly and Molly’s school. Milly, Molly and Lily quickly learn that they have a lot in common and become great friends. Lily appears to be sad that she doesn’t have a cat to call her own, so Milly and Molly decide to surprise Lily by gifting one of Marmalade and Tom Cat’s kittens to her. Milly and Molly wanted to do something nice for Lily to make her happy because they are friends and care for each others feelings.

The Milly, Molly and Lily series of books have been written to promote the acceptance of diversity and sound principles for character education.