Imagine the tale of Harry Potter. Now add in Mary Potter, Harry's twin. They grew up together and take their first steps into the magical world together. But when they finally find a home they never knew about, they have to do their best to protect it. Together. Of course, somethings -like birthday presents and owls- don't come in two's. Other things -like trouble and mischief- come twice as much when you're "The twins who lived". Based on Harry Potter and the Philosopher's/Sorcerers Stone.