Once a ship loaded with pleasure-seekers was sailing from North China to Shanghai. High winds and stormy weather had delayed her, and she was still one week from port when a great plague broke out on board. This plague was of the worst kind. It attacked passengers and sailors alike until there were so few left to sail the vessel that it seemed as if she would soon be left to the mercy of winds and waves. On all sides lay the dead, and the groans of...