Without the promise of a statement of rights, the U.S. Constitution might never have been ratified. And without the aid of this time-traveling trio of kids, the Bill of Rights might not be what it is today, at least that's how this entertaining trip back in time tells it. Gaby, Zoe, and Will are in the thick of the action as Founding Father James Madison helps craft the first 10 amendments to the Constitution. Budding historians will love learning...