Moving to a new house and school is hard for Lucy, but then she finds a family of stray kittens in an alleyway and doesn't feel quite as lonely. She especially loves the shy black-and-white one and calls her Catkin.
Catkin doesn't like it when the other kittens are taken away. Lucy makes her a new home in their greenhouse, but the kitten can't stay there forever! How long can Lucy keep Catkin a secret?