Once upon a time, there was a little old lady who was not afraid of anything! But one autumn night, while walking in the woods, the little old lady heard . . . clomp, clomp, shake, shake, clap, clap. And the little old lady who was not afraid of anything had the scare of her life!

Strange noises, sudden appearances, and rumors—do these add up to Yankee Stadium having its own ghost? If so, Mike and Kate are determined to find it. Or find out who's behind these strange occurrences. Or maybe just catch a ballgame. A fun mystery with a pair of cousins who combine talents to be effective sleuths.