Okay, I just had Codi shove Atticus over the falls, and Atticus discovered he could breathe underwater. I actually already intended at some point in the story for Codi to force Atticus into a situation where he thought he was going to drown, just because it's extremely good for character development. I've actually based some of the reactions off of real-life events, but I'm still not sure how well I pulled that off. I really had to think that post over.