Step 1 : Introduction to the question "The Boy Who Knew Too Much is a book about a boy, Christian Haupt, who is believed to be the reincarnated spirit of what famous MLB baseball player? "
At the tender age of two, baseball prodigy Christian Haupt began sharing vivid memories of being a baseball player in the 1920s and '30s. From riding cross-country on trains, to his fierce rivalry with Babe Ruth, Christian described historical facts about the life of American hero and baseball legend Lou Gehrig that he could not have possibly known at the time.