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 the dying were most terrible to hear. Of that great company of travellers only one, a little boy named Ying-lo, had escaped. At last the few sailors, who had been trying hard to save their ship, were obliged to lie down upon the deck, a prey to the dreadful sickness, and soon they too were dead.Ying-lo now found himself alone on the sea. For some reason—he did not know why—the gods or the sea fairies had spared him, but as he looked about in terror at the friends and loved ones who had died, he almost wished that he might join them.The sails flapped about like great broken wings, while the giant waves dashed higher above the deck, washing many of the bodies overboard and wetting the little boy to the skin. Shivering with cold, he gave himself up for lost and prayed to the gods, whom his mother had often told him about, to take him from this dreadful ship and let him escape the fatal illness.As he lay there praying he heard a slight noise in the rigging just above his head. Looking up, he saw a ball of fire running along a yardarm near the top of the mast. The sight was so strange that he forgot his prayer and stared with open-mouthed wonder. To his astonishment, the ball grew brighter and brighter, and then suddenly began slipping down the mast, all the time increasing in size. The poor boy did not know what to do or to think. Were the gods, in answer to his prayer, sending fire to burn the vessel? If so, he would soon escape. Anything would be better than to be alone upon the sea.Nearer and nearer came the fireball. At last, when it reached the deck, to Ying-lo's surprise, something very, very strange happened. Before he had time to feel alarmed, the light vanished, and a funny little man stood in front of him peering anxiously into the child's frightened face...