Robbie Tatum didn't know what 'he' was. Thirteen years ago, at seven years old, how could he? The fact that he looked weirdly different from people didn't surprise or bother him, as a seven year old's world is a patchwork of surprises anyhow. In fact, 'he' didn't seem any more magical to Robbie than a circus clown he'd seen being shot out of a cannon. So when he simply appeared one day in his room, Robbie wasn't surprised at all...