Moans and groans and dinosaur bones

THE PEE WEE Scouts are on a field trip to the Science and History Museum! They see dinosaur skeletons and ancient mummies. But it's what they don't see that causes a problem. WHERE is the ancient Egyptian necklace? It's worth a fortune--and it's missing! Is there a crook in Center City? Molly and Tim think so . . . but it will take every Pee Wee working together to learn the truth!From the Trade Paperback edition.