"Let me see," urged Jimmie, stepping forward to bend over the machine for a careful exploration of the hot oil cup. Presently he straightened, and with wide open eyes glanced in wonderment toward his comrades as he extended a greasy forefinger for examination.
"That's emery!" he choked. "Emery will cut any bearing!"
"Emery!" echoed the two Black Bears in chorus.
"Yes, sir, emery! Some one must have put it there meaning to bring disaster to us. Tell you what," Jimmie went on hurriedly in a hushed voice, "it looks as if somebody had it in for us and we are due to go through the old story of having difficulties just before we reach a stage of success! Someone's trying to delay the Grey Eagle!"
"Let's not mind that just now," urged Jack, "the thing to do is to get this machine off the road and then hasten as fast as we can to the Black Bear Club Rooms to meet Ned. It's only two or three blocks to French Pierre's machine shop. One of you can tow me over there and we'll leave all three machines with him for the day at least."
"Right-O!" answered Jimmie springing to his motorcycle and starting the engine. "I'll tow you as fast as you can ride!"
In a few moments the three boys were again under way, but this time their progress was decidedly slower. Their course was laid toward a portion of the village devoted to factories. Here was located the machine and repair shop of a Frenchman whom the boys knew well. He had assisted them with his expert knowledge in many of their experiments, and the boys regarded him as a friend who could be safely trusted.
While the boys are proceeding on their errand it may be well to make a more careful observation of them. To those of our readers who have had the pleasure of following the adventures of the lads as related in previous volumes of this series, no introduction is necessary. For the benefit of those who have not become acquainted with the work and play of our Boy Scout friends a word of explanation may not be out of place at this time. Their adventures in the States, in Alaska, in the Philippines, in China, in Mexico, were thrilling in the extreme and gave many situations of peril from which only the most energetic efforts on the part of the boys themselves brought safety.
Jimmie McGraw, the lad with the red hair and freckles, had been a Bowery newsboy in New York until he had fallen under the observation of Ned Nestor, a well-known member of the Boy Scouts of America. He was of slight build, and though of about the same age as the other lads, was somewhat shorter. His active manner, quick wit and rash boldness in times of danger, coupled with a keen perception and an ability to correctly weigh values, more than made up for any apparent lack in the matter of size. Wise beyond his years, Jimmie always proved a welcome member of any party whether on business or pleasure bent.
Jack Bosworth, who had just suffered the disablement of his motorcycle, was the son of a well-known New York capitalist and corporation lawyer. Like Jimmie, he was exceedingly active. A strict observance of the "setting-up" exercises, diet and health regulations such as had been insisted upon by Ned Nestor had developed in Jack, as well as the other lads, a wonderful endurance. He possessed a skill in athletics that stood him well in hand when occasion required feats of endurance or agility that might well have taxed the ability of many men older or of greater physical proportions. Jack's dark complexion contrasted strongly with Jimmie's ruddy face and wealth of auburn hair, yet the two lads were warm friends despite their difference in appearance.