Billy Silverbones is a silver skeleton who works to solve problems. When his associate Ducks Quackly comes to him with a story about a secret message written on a wall, Billy is on the case!

The message shows three lines of strangely-drawn people. No one can figure it out, but Billy thinks it's a code! With the help of Ducks's sisters, Boots and Toots, the four of them work diligently to break the code and discover the healthy meaning of the Halloween message.

Based very loosely on the Adventure of the Dancing Men, a Sherlock Holmes story, this gets young children familiar idea of secret codes and how to figure them out. And maybe it teaches a little about healthy eating over Halloween along the way!