Paul Vapoor was a genius, and that accounted for his position as chief engineer at the age of twenty-two. He was born a machinist, and his taste in that direction had made him a very hard student. His days and a large portion of his nights, while in his teens, had been spent in studying physics, chemistry, and, in fact, all the sciences which had any bearing upon the life-work which nature rather than choice had given him to do. His father had been in easy circumstances formerly, so that there had been nothing to interfere with his studies before he was of age. Up to this period, he had spent much of his time in a large machine-shop, working for nothing as though his daily bread depended upon his exertions; and he was better qualified to run an engine than most men who had served for years at the business, for he was a natural scientist. There was scarcely a part of an engine at which he had not worked with his own hands as a volunteer, and he was as skilful with his hands as he was deep with his head. Paul's father was an intimate friend of Captain Passford; and when a sudden reverse of fortune swept away all the former had, the latter gave the prodigy a place as assistant engineer on board of his steam-yacht, from which, at the death of the former incumbent of the position, he had been promoted to the head of the department. While his talent and ability were of the highest order, of course his rapid promotion was due to the favor of the owner of the Bellevite. Captain Breaker, who had rather reluctantly assented to the placing in charge of the engineer department a young man of only twenty-one, had no occasion to regret that he had yielded his opinion to that of his owner. Paul Vapoor had been found equal to all the requirements of the situation, for the judgment of the young chief was almost as marvellous as his genius. Paul was gentle in his manners, and possessed a very lovable disposition; in fact, he was almost a woman in all the tender susceptibilities of his nature; and those who knew him best knew not which to admire most, his genius or his magnetic character. Mr. Leon Bolter, the first assistant engineer, was thirty-six years old; and Mr. Fred Faggs, the second, was twenty-six. But there was neither envy, jealousy, nor other ill-feeling in the soul of either in respect to his superior; and they recognized the God-given genius of the chief more fully than others could, for their education enabled them to understand it better. Paul Vapoor and Christy Passford were fast friends almost from the first time they met; and they had been students together in the same institution, though they were widely apart in their studies. They were cronies in the strongest sense of the word, and the chief engineer would have given up his very life for the son of his present employer. The owner favored this intimacy, for he felt that he could not find in all the world a better moral and intellectual model for his son.