Unique is a word for it, he supposes. But this only does more to confuse Number 6. If not even Skullduggery's own world is full of walking talking skeletons, then Number 6 just doesn't understand it. He's so flustered he uncharacteristically blurts-out, "How on Earth do you exist?"

And belatedly, he frowns and adds, "My current alias is Peter Smith, if you please."