Nancy Drew Girl Detective 2: Writ in Stone

When an ancient artifact and a little boy go missing, Nancy and her friends are on the case. The artifact may prove that the Chinese discovered America prior to Columbus, but someone doesn't want that knowledge public and is out to stop Nancy, permanently.Nancy and her friends Bess and George investigate the disappearance of both Owen Zucker, a lttle boy that Nancy has babysat for, and an ancient stone shore marker which may prove that the Chinese reached America before Columbus.