There's been a snake-napping at the River Heights Zoo, and all clues about the thief seem to point in my good friend Charlie's direction. But why would Charlie want to steal a snake? I'm not convinced he's the perpetrator, but with all the circumstantial evidence that keeps popping up, the cops are on the other side of the fence. <P> Speaking of snakes, George's younger brother, Scott, has been slithering around a lot lately, all sneaky-like. He's not acting like himself, but his lips are sealed about what's wrong. Do these mysteries have anything to do with each other? <P> Stick around. I'm about to find out!