It’s almost Halloween, and Nancy can’t wait. Not only does she get to dress up, but she and George are having a sleepover at Bess’ house. But somebody’s turning the trick-or-treating into one big trick.
Nancy’s puppy finds and old key in Bess’ backyard, and after Bess brings the key inside, it disappears! The key didn’t get up and walk away by itself, but who took it? What’s the big secret? Nancy’ asking the questions, and the answer could be a real surprise!