Can you keep a secret? Stella Batts has a lot of secrets to keep these days—there's the secret of what really happened to her little sister's pet fish, and there's the secret school project she's working on with her friend Lucy, and there's the secret on the second floor of her family's candy store. Actually, Stella doesn't know the candy store secret yet, because her dad won't tell her. Even though she's eight years old, and that's old enough to be trusted! Stella hasn't told any of her other secrets all week, and some of her other friends are feeling left out. But that's the problem with being told a secret: You have to keep it!