‘Mr Baylis, I’m a Chinaman.’ Mr Baylis, for once, fell silent. His eyes roved over Robin’s face, as if trying to detect the truth of this statement in his features. Then, to Robin’s great surprise, he burst out laughing. ‘No, you’re not.’ He leaned back and clasped his hands over his chest, still guffawing. ‘Good Lord. That’s hilarious. No, you’re not.’ Professor Lovell said nothing.

