Are you afraid of the dark? Stella Batts never thought she was. In fact she's not feeling afraid of anything right now. She's just excited. Her class read the most books out of every class in school. The prize is a sleepover in the library. What could be better than that? Everyone is in pajamas, even the teachers. The kids break off into groups to go on a scavenger hunt. That's when Stella finds a really old book by an author who is also named Stella B. Though the subject matter is nothing this Stella would ever write about. And then there's an unexpected visitor who shows up in the middle of the night. Stella doesn't know what to think, but she knows one thing for sure—she's scared of the dark now!