Dear Reader, With Halloween around the corner, it's a fun time to imagine what else we could be: not just whether we could have been doctors, but what it would be like to be a dragon, a ghost, or an elven warrior. When he was little, Greg imagined himself as Superman...stoically leaping off the roof of the family's garage...and sloppily landing in a heap below. I, on the other hand, often imagined I was a horse, galloping wild and free all over the playground, pawing the ground and snorting....