"Where a machine has gone once, another may go," said Chester calmly.

"Besides, if you'll notice, there is a well-defined track ahead of you, and unless I am much mistaken, it goes not toward the road but away from it."

"By Jove!" replied Hal. "You are right. Now I wonder how that happens."

Gradually the car gathered speed, until it was traveling along at a good gait. Hal did not wish to go too fast, for he was not familiar with the roads, and besides, the steep grade also precluded this.

Night fell. Hal stopped the car long enough to light the searchlights.

"They may betray our presence," he said, "but if I don't light them we are likely to go into a ditch."

The car crept along slowly during the night hours, and morning found them still in the mountains. With the coming of dawn, however, Hal put on more speed, and by noon they were once more on the plains of Galicia.

Then Hal "let her out."

Suddenly the machine flashed by a body of troops. Hal swerved to one side of the road just in time to avoid running into them. Chester caught a glimpse of their uniforms.

"Russians!" he called to Hal.

"Are you sure?" the latter called back.

"Sure," replied Chester.

Hal reduced the speed of the car.

"In that event I'll slow down," he said.

The car went along now at a more moderate pace; but once again on a road clear of troops, the speed was increased. They made several stops along the route, and it was late the following afternoon when they recognized the familiar minarets of Lodz. Half an hour later the lads were admitted to the presence of the Grand Duke, Alexis remaining outside in the automobile.

Hal made his report to the Grand Duke clearly and concisely.

"I feared as much," said the Russian commander-in-chief, when the lad had finished. "You have done well, however. You will rejoin your regiment as soon as convenient."

At this moment Count de Reslau appeared in the Grand Duke's tent. He did not at first notice the presence of the two lads, and bowed to the Russian commander.

"Your Excellency----" he began.

At that moment his eyes rested on Hal and Chester and a look of surprise and consternation pa.s.sed over his face.

"You here?" he cried.

Hal and Chester bowed.

"Yes, sir," said the latter quietly.

The Grand Duke turned to the count with a smile.

"And they have successfully performed their mission," he said. "But it is even as I have feared. Brunnoi will support Austria. And what is worse, my plans are being learned by at least one of his agents and sent to the Austrian general staff."

"Impossible!" exclaimed the count, who had now regained his composure.

He turned to the two lads. "Certainly," he said, "when I saw you last I did not expect that you would ever return here. It was a hazardous mission the Duke sent you on. Are you sure your information is authentic?"

"Perfectly," replied Hal calmly. "Brunnoi himself was our informer."

"In that case," said the count with a shrug of his shoulders, "you must be right."

He turned, and with a few brief words to the Grand Duke, left the tent.

The lads talked for some moments with the Russian commander-in-chief, and then left the tent, informing him that they would join their regiment the following day. Outside, they climbed again into the automobile and Hal drove the car to the house where they had left Marquis.

The dog was overjoyed at seeing his friends again. His tail wagged fiercely and he barked with gladness, insisting upon kissing all three, in spite of their protests.

"Down, Marquis!" cried Hal with a laugh. "Do you want to eat us up. Now what do you say, sir, will you be glad to rejoin your regiment to-morrow?"

"Yes! Yes!" barked Marquis.

"Good!" said Chester. "But we will leave you here while we get something to eat. Then we will come back and get you."

The three left the house, and made their way to the nearest restaurant, where they ordered a sumptuous meal. It had been long days since they had tasted food in plenty, and they ate hungrily. It was almost dark when they left the restaurant and started after Marquis.

As they pa.s.sed down a side street, five men armed with long knives sprang out upon them. The three friends were caught off their guard by the suddenness of the attack, and in spite of the fact that they drew their swords, for they were again in uniform, their a.s.sailants pressed them sorely. A sword thrust pierced Hal in the arm, and his weapon fell to the ground. He drew his revolver with his left hand, however, and fired point-blank at his adversary. His aim was true, and there was one enemy less.

At the same moment Chester ran his opponent through, and Alexis brought another to the ground. The other two turned and fled.

"I wonder what that was for?" said Chester, brushing himself off.

"I can't imagine why we should have been attacked," declared Hal.

He broke off; for at that moment he espied a figure standing in a nearby doorway; eyeing them evilly. Hal caught Chester by the arm, and pointed to the figure.

"There is the answer," he said quietly.

Chester gazed in the direction indicated. Then, with a sudden cry, both boys dashed toward the doorway.

For the man they saw, with a sneer curving his lips, wore a long, flowing, white beard and a military uniform.

He was Brunnoi, chief of the Hungarian bandits!

CHAPTER XVII.

A STRANGE DISCOVERY.

Seeing that he was discovered, Brunnoi darted from the doorway and tried to escape. But he was not quick enough. The lads were upon him in an instant, and beneath their weight the bandit chief was hurled to the ground. He struggled fiercely, clawing and scratching like a cat; but Hal and Chester were too much for him.

Brunnoi finally ceased his struggles and lay quietly in the lads' hands.

Hal took him by the collar and jerked him to his feet; then, each lad taking an arm, they led their prisoner straight to the Grand Duke's quarters. They were admitted instantly, and pushing their captive before them, they approached the Russian commander-in-chief.