Four uncommon kittens and their mother live in an alley (Thelma, Roger, James, Harriett, and Mrs. Jane Tabbey). She loves them dearly and wants them to fly someplace better. They find a forest, it becomes just as dangerous as the city. Harriett finds the right kind of people, and her siblings follow her to meet them. A young girl and her brother promise to care for and protect the winged cats. Lovely illustrations scattered throughout the text.