The Boy Allies at Liege Part 17

Just as they dashed in the door, the man with the knife snarled in a low voice:

"Give me the key to the workshop, I tell you. We mean business!"

"You mean business, do you!" shouted Hal, striding toward him.

"Well, so do I!"

The man turned at the sound of Hal's voice, and, with upraised knife, awaited the lad's attack.

"You cowardly ruffian!" cried Hal, "to attack a defenseless old woman!"

As he spoke, he leaped upon the man, dodging the blow the latter aimed at him with the wicked-looking knife. Before the latter could recover his balance, Hal seized the arm that held the knife.

A sharp twist and the knife went spinning across the floor. Both leaped for it, but Hal was quicker than his opponent, and placed his foot upon the weapon. With a snarl the man sprang upon him.

Chester had entered the room upon Hal's heels; and, as his friend jumped for the first intruder, Chester rushed at the man in the next room. The latter heard him advance, and, stepping back, picked up a chair, which he brandished over his head. Taking a rapid stride forward, he swung his improvised weapon at Chester's head.

Chester avoided the blow with a quick, backward leap, and the chair was smashed to fragments against the door. Then Chester jumped forward and closed with his opponent.

With a rapid movement he placed his knee behind the other's leg and pushed suddenly. The man went over backward, with Chester on top of him.

As the intruder fell, his head came into contact with the sharp projection of the bureau, and when he struck the floor he lay still.

Chester rose to his feet.

As Hal's opponent sprang toward him, the lad stepped in close and delivered a stinging short-arm blow over the other's heart. He staggered back, and, as Hal took another step forward, Chester, having disposed of his adversary, threw his arms about the man from behind, and bore him to the floor, where both boys piled on top of him.

While the three were struggling on the floor, a voice from the doorway exclaimed:

"What is going on here?" and Fritz rushed into the room.

He took in the situation at a glance, and, rushing forward, lent a hand in subduing the boys' opponent.

The struggle was over quickly, and, seizing a strong rope, which hung from the wall, Fritz soon had the two men safely bound. Then he turned to his mother, who still sat huddled on the chair, where she had been when the boys entered the room. The excitement had been too much for her, and she had fainted.

She was soon revived, however, and, when she was strong enough to sit up, jumped to her feet, and, throwing her arms around Hal, kissed him loudly.

Then she turned her attention to Chester, and repeated the operation.

"My preservers!" she cried, laughing and crying at the same time. "Fritz, but for these two boys your old mother would now be dead."

Rapidly and somewhat incoherently she related what had occurred, and Fritz was no less warm in his praise for the actions of the two boys.

"Those men are undoubtedly spies," he declared. "They most certainly had designs upon my biplane, which they evidently knew had been completed. I shall turn them over to the military authorities."

He left the house, and in a few moments returned with a squad of soldiers, who took the a.s.sailants in charge. Fritz explained to the officer how the two men had been captured, and the German officer complimented the boys highly for their prompt action.

After the two prisoners had been led away, Hal bethought himself of the remark Fritz had made concerning his biplane.

"Do you mean to say your aeroplane is ready for use?" he asked.

"Yes; I am going to make a short flight this afternoon. Would you care to watch me?"

"Would we!" exclaimed Hal. "You can just bet we would!"

"All right, then; come on."

The two lads followed Fritz to his workshop. Inside the boys approached the large aircraft, which rested lightly on its wheels at the end of the speedway. The huge planes which served as wings stretched out on either side like two great box kites, while underneath the aviator's seat the gearing could be plainly seen.

The aviator looked at the machine with great pride, and spoke of the improvements he had made in the propellers and in the system of power transmission. He explained to the boys that, by this direct system, he had gained twenty per cent more velocity; and, now that the war had begun, he hoped to be able to prove this to the army experts.

The boys helped Fritz push the machine out into the open, and watched intently while he tested the steering gear and tried the ignition. After some further tinkering, Fritz finally took his seat, pulled a lever, and, after skimming the ground for a few rods, the machine rose gracefully into the air.

"By George!" said Hal to Chester, as the craft rose from the ground.

"That looks easy. I believe I could do it myself."

"It looks easy," Chester admitted. "But how do you suppose a fellow would feel sailing along up there?"

"I guess it would scare me a little at first, but, just the same, I should like to try it."

After circling around for several minutes, Fritz brought the machine back to its starting point and, lightly as a bird it dropped to the ground.

"Would you like to take a short flight?" he asked the boys.

Chester backed away.

"Not for me," he declared. "I would lose my head sure, if I got up there."

Hal laughed.

"You don't want to pay any attention to him when he talks like that," he told Fritz. "I never saw anything yet he was afraid to do."

"After what I saw in the house to-day, I can well believe that," replied the young German. "Would you like to go up?" to Hal. "You know the machine will only carry two."

"Why, yes," answered Hal; "I would like it."

"Climb in, then," ordered Fritz.

Not without some misgiving Hal obeyed.

Once more the huge machine skimmed gracefully over the ground, and again went sailing into s.p.a.ce.

As the plane rose from the ground, Hal grabbed the side of the seat and hung on for dear life. Looking down and seeing the ground dropping rapidly away, he experienced a choking sensation in his throat.

As the machine stopped rising, however, and stretched itself out for a straight flight, Hal's composure came back to him, and he looked around with interest.

Then Fritz explained the mechanism of the machine to him. He showed him how to stop, how to increase the speed of the plane; how to rise and how to glide to earth. He also showed him how to work the steering wheel.

While they were sailing about in the air he told Hal that, if necessary, his craft could make a speed of one hundred miles an hour for hours. He declared it could attain an alt.i.tude of a mile. Practically the only danger, he said, came from conflicting air currents.

After sailing around for nearly half an hour, Fritz again brought the machine to the ground a few feet from where Chester stood.

"Great!" exclaimed Hal, as he alighted and helped Fritz roll the machine back into the shop. "No more automobiling for me. When I get home I am going to get an airship."