There was no help for it. The three friends obeyed.

"Where are you taking us?" demanded Hal of one of their captors.

"To Brunnoi!" came the brief response.

"Great Scott!" said Hal to Chester, in English. "We certainly couldn't have got there quicker any other way. You don't suppose he has learned of our mission."

"I don't see how that is possible," replied Chester.

"Nor I; I suppose the thing to do is to try and convince him we are German soldiers, or else come straight out and tell him who we really are and why we are here."

"The latter way might be best," said Chester, thoughtfully. "For Brunnoi after all may not be such a staunch Austrian supporter as our late host would have us believe."

"True," said Hal. "I hadn't thought of that."

After an hour's ride they came to a little clearing in the forest that covered this point of the mountain. Here they were ordered to dismount, and for half a mile proceeded on foot. As they advanced still further the lads made out the mouth of a huge cavern. Into this dark hole their captors pushed them. Down the mouth of the cavern they walked, and then suddenly came to a sharp turn. Ten more paces and they b.u.mped into a solid wall. One of their captors stepped forward and pa.s.sed his hand over the surface of the smooth rock, and it gave way before him, turning on well-oiled hinges.

"Great Scott!" muttered Chester. "I have read of these things, but I never expected to see one."

The rock fell into place behind them, and the boys saw that they stood in a well-lighted compartment, in which stood a table and chairs. Their guards led them further along, to where they perceived a closed door. On this one of their captors knocked sharply.

"Come in," came a deep voice from beyond the door.

One of the guards opened the heavy wooden door, and stood back, signifying for the prisoners to enter.

The three friends did so. The room was brilliantly lighted. At a large mahogany desk sat a man in a military uniform, though of what country or what his rank the boys could not tell, for they had never seen a similar uniform and the man wore no shoulder straps. The chairs in the room were beautifully upholstered, and pictures were hung about the walls. All this the lads saw at a single glance.

The man at the desk rose and approached them. He bowed slightly, and, after ordering their hands released, indicated three nearby chairs.

"Be seated, if you please," he said politely, at the same time motioning the guards to withdraw.

Hal, Chester and Alexis did as requested. There was now no question of the man's ident.i.ty in the mind of any. He wore a long white beard and had a pleasant, kindly face.

Hal rose to his feet.

"Are you Brunnoi?" he asked.

Brunnoi bowed.

"At your service," he replied. "Now, what can I do for Lieutenants Payne and Crawford, and their Cossack friend?"

The lads started to their feet upon hearing their own names thus upon the lips of a man they did not believe could possibly know them.

"Come, come, gentlemen," said Brunnoi, smiling at their surprise. "You see, many things are known to me. For instance, now, I could even tell you the object of your expedition to these mountains. Is it necessary?"

Hal threw wide his arms with a gesture of dismay.

"I guess it is not necessary," he said quietly.

"Good!" cried Brunnoi, for the first time evincing real interest in the lad. "You are a man after my own heart. You have nothing to gain by subterfuge."

"Well," said Hal slowly. "You know who we are and the object of our mission. What is your answer? Are you Austrian or Russian? Are you a Slav or not?"

Brunnoi jumped to his feet.

"Yes," he replied, "I am a Slav; but I am not one of your down-trodden Russian Slavs. I am a Hungarian, and a Hungarian--a true Hungarian--to-day is an Austrian!"

"Then," said Hal calmly, "our mission is accomplished. We know where you stand. May I ask you a question?"

"Certainly."

"Is it true that you have been able to furnish the Austrian general staff with the Grand Duke Nicholas' plans?"

Brunnoi was silent for some moments, but at length he replied:

"I don't mind answering that question, for you will never repeat my answer to the Grand Duke. Yes, I have furnished the Austrian general staff with important information."

"Well," said Chester, breaking into the conversation, "what are you going to do with us?"

"Why," said Brunnoi, "for the present you shall be kept here as my guests--prisoners, if you prefer. After that--well, it all depends.

Should the Russians come, it may be necessary to dispose of you.

Therefore, you should be wise and pray for Austrian success."

"Surely you do not mean that you would murder us?" asked Hal.

"I call it by no such name," replied Brunnoi calmly. "Putting away an enemy is not murder."

"Very well," said Chester calmly. "I suppose there is no use talking about it."

"Not the slightest. Come! Follow me, and I shall show you where you will make your home."

The bandit chief arose from his chair and led the way into another compartment. Hal, Chester and Alexis followed him. This room was also fitted up comfortably, though not as pretentiously as the bandit's office. There were several beds in the room.

"You may make yourselves comfortable here," said Brunnoi. "The door will be always locked, but that need not interfere with your comfort."

He bowed and left the room, and the three prisoners heard the key turn in the lock behind him.

"It looks to me as though we are in a bad way this time, all right,"

said Chester, when they were left alone.

"A bad way is no name for it," replied Hal; "but tell me, Chester, did you notice anything familiar about Brunnoi?"

Chester clapped his hands together.

"By Jove!" he exclaimed. "Now that you mention it, it seems to me I have seen him some place before. But I can't place him."

"Nor I; but I am positive this is not the first time we have met. It is his voice that puzzles me."