A long, low, gray car with black lines--and known as the _Hare_, was another of the "sure" winners, according to the forecast of those whose wisdom was aired each day and night wherever crowds congregated in Queensville. The identity of the _Hare's_ driver was the subject of almost unceasing discussion. When out on the course or wherever he might be seen, he wore invariably a head-dress that covered his face completely. None could recognize him. On the entry list his name appeared as "I. S. Mystery"--nothing more, and it is scarcely necessary to add that a mystery he was. Cobert, his mechanician, was also unknown. He wore no mask. His head-rigging left his face open to close scrutiny; but he was silent always. He worked with Mr. "Mystery" as if they read continuously each the thoughts of the other and had no need of any other language. The _Hare_, as a car, was known quite well enough. The manufacturers were among the most prominent in America. As a factor in the heavy car race, the machine was considered very important, as has been stated. So much, however, depends upon the skill, experience and daring of the driver in any such contest, that many and many a man would have given a great deal to know who "Mystery" was, and where he and Cobert had acquired their apparently perfect training. Six other cars, including the Alameda, two Brights, a Henry and two Wings completed the field for the big race. The light car contest was but a minor affair and attracted little notice. Of the six machines just mentioned, the Henry was looked upon as a bare possibility. The Brights were not rated highly, though one of them, with Crane--a long-experienced driver--as pilot, was counted upon as an interesting "dark horse." The Wings were the product of unknown builders. One of the wags at the Crown Hotel remarked that "the _pair_ of them might fly _some_, but not very far at that." The Alameda was not considered at all formidably, either, being practically unknown. All the gossip concerning the different contestants he had heard about the hotel Gaines repeated as being strictly first-hand intelligence, or quite as if every word were a matter of his own personal knowledge, as the Trio watched the Monday morning practice. Very well did Fred and Pickton know where he had heard all he told them. That they secretly resented his manner of superiority there can be no doubt; but their interest in obtaining information was too lively to permit of their failing to listen, and attentively. By ten o'clock, all the racing cars had been taken home to their respective stations, some in Queensville and some to headquarters established in camps at convenient points adjacent to the course. With the way now open to them, the Trio started in the Roadster for a trip around the circuit, Pickton at the wheel. "Oh, you!" called a voice from one of the tire supply pits directly in front of the grandstand. Perth answered, "Hello!"