Sarah He said Santa would have to fly faster than the speed of light to get to everyone's house in one night. And to hold everyone's presents his sled would have to be bigger than an ocean liner. Father Your brother said that? He was just kidding you. He knows there's a Santa. Sarah He said he wasn't sure. He wasn't sure if Santa was for real. Conductor Well? You coming? Hero Boy Where? Conductor Why, to the North Pole, of course! This is the Polar Express! Know-It-All Do you know what kind of train this is? Hero Girl Of Course. It's a magic train. Know-It-All I know it's a magic train. Actually, it's a Baldwin 2-8-4 S3-class steam locomotive built in 1931 at the Baldwin Locomotive Works. It weighs 456,100 pounds and...