Five minutes later Hal returned, this time with a uniform and no man. He had found him in a deserted spot, and after knocking him down and tying him up, had stripped him.

"Put this on, Anderson, and get out after one," he ordered.

He was gone again a moment later. Soon also Chester returned successful and he and Anderson departed almost together. There were now needed uniforms for Nikol, Stubbs and Helen, for Chester had brought one for Ivan. And these uniforms must necessarily be small uniforms, for they were for small figures. Therefore, the hunt was longer and it was more than an hour later until all three had returned to the tent.

"Well, here we are, all of us first cla.s.s Bulgarians, now," said Hal.

"Now, we'll leave the tent one at a time, except that I shall take Miss Ellison with me first. Now do exactly what I tell you, all of you.

Leaving the tent, walk two hundred paces to the left, then turn to the right and walk a hundred and fifty more. Next fifty paces to the left again. We shall wait for you there. I have covered the distance and it's the best place to join forces I can imagine. It is in the shelter of a great rock that overhangs a large tent--probably the quarters of the commanding officer. Do you all understand?"

He had each repeat the directions several times, and then, taking Helen by the arm, he helped her under the tent.

Outside, with caps drawn down, for the weather was cold, they hurried on.

And at the appointed place Hal stopped. There was nothing to do now but wait for the others.

Stubbs was the next to arrive and he came shaking a trifle. The little man was trying to bear up, but he was having a hard time. The next arrival was Nikol and then came Ivan. Chester was next to arrive, following Colonel Anderson by a few seconds.

"Now we're all here," said Hal. "We may as well move. I have no idea just where we are, so we'll have to select a direction and stick to it."

"Wait a moment, please," said Helen. "Isn't that the house in which we were captured?"

She pointed in the darkness. The others peered intently in the direction indicated. A dark shadow loomed up some distance ahead.

"I believe it is," said Hal. "Why?"

"Then, if you want to get into Greece, the quickest way is to go due south."

"But the question is, which is south?" said Hal.

"Oh, I can tell you that. You just follow the road that leads by the house."

"So be it," said Hal. "March."

With Chester and Helen he led the way.

They were forced to go very slowly for they were still in the Bulgarian lines, and all knew they would be for a considerable distance. How far the Bulgarians had extended their lines following the retreat of the Serbians they had of course no means of knowing, but Hal felt sure it would be a good ways.

Tents dotted their line of march for an hour as they walked along keeping parallel with the road, but some distance from the highway.

"This road will eventually lead across the Greek border," the girl whispered as they walked along.

"Here's hoping we get across the border before the Bulgarians get after us," said Chester.

"Second that motion," declared Hal.

They walked on in silence.

It had been more than an hour now since they had left their late prison and Hal was beginning to hope their absence would not be noticed before morning. He had just said as much to Chester.

"I am afraid that is too much to hope for," was the latter's reply.

And, as it turned out, it was.

The party had walked possibly five miles, when, from behind, they heard the sudden booming of a great gun.

"Faster," said Hal, and broke into a trot. The others followed suit.

"Suppose they have discovered our flight, or the gun was some other signal?" said Chester.

"I don't know," said Hal. "It's as likely to be one as the other. The farther away we get the better."

More guns now shattered the stillness of the night, growing closer and closer.

"They are after us, all right," declared Hal.

Without pausing, he glanced quickly around. Then suddenly he swerved sharply to the left.

"Why this change in course?" panted Chester.

"See that woods?" demanded Hal, pointing.

"Yes."

"Well, we may find safety there. It's a long chance."

They dashed into the shelter of the little woods a moment later.

Hal stopped and turned to Helen.

"Climb?" he asked.

"Why, yes, I guess so."

"Up in this tree with you then."

He lent her a hand as she grasped the lowest branch and soon clambered higher up toward the top.

"You too, Stubbs," he commanded.

The little man did not hesitate, but also was soon among the branches.

"Colonel Anderson, you and Nikol get up there also. I want some protection for Miss Ellison in case of trouble."

The others obeyed orders without question.

"All right," from each, and they moved toward him.

"Ivan, you come with me. You too, Chester."

Hal turned for a moment, to deliver a parting injunction to those in the trees: