When ordinary third-grader Ed finds a coin with the words "strange" and "stranger" on both sides, weird things start happening around him--but when his friends start blaming him for all the weirdness Ed wonders if this coin is not too strange for comfort.

Ed, his friends, and even his little sister are eager to go to Dinosaur Discovery, but ever since he found the magic coin called Silver Center, strange things happen around Ed--so he is not surprised to find that a blue dinosaur has followed his sister home.