The soldier was trembling now in every limb.  He looked hard at Fred, as if he suspected that he might have something to do with this mysterious, awesome voice.  But Fred’s lips had never moved.  Fred, at home, had often amused the guests of his family and the gatherings of the scout patrol to which he belonged with this trick of ventriloquism.  But the German evidently had never heard of such a thing.  And suddenly he broke into a run.  He made for the gully and ran along it with stumbling feet.

“Now stop!” boomed the voice—­directly in front of him!  “Not a step further!  Begin to count aloud.  But do not shout!”

“Ein, zwei, drei, vier—­” began the German, obediently.

And Fred, half choking with suppressed laughter, slipped behind the screened entrance of the secret passageway, while the soldier’s back was still turned.  He did not quite close the door, but waited to make sure that the German’s curiosity did not get the better of his fright, which had certainly been real enough.  But it was all right.  The man counted right up to a hundred, and once or twice, to Fred’s huge amusement, when he stammered, and lost track of his numbers, he went back and counted several of them over again!  But he finished at last, and Fred heard him come stumbling down the gully.  He seemed to hesitate then.

“May I really go now?” he asked.  “I did not know there was a spirit here, or I would not have come.”

“Yes.  Go, and quickly!” said Fred, throwing his voice out so it came from far above the soldier.

He heard the soldier running then, and in a moment closed the door behind him, and began retracing his steps along the secret tunnel.

“Gee!  That was a close call!” he said to himself.  “Serves me good and right, too, for doing more than I was told!  I might have spoiled everything by not waiting until I knew more about the place.  If that soldier hadn’t been ready to see a ghost in anything he didn’t have some reason to expect to meet, I’d be in a lot of trouble now.  And yet I’ll bet he’s brave enough, too.  If he had an enemy he could see and touch, he’d fight all right.”

But Fred had more to think about now than what had happened, or what might have happened, either.  He was more interested in what was to come next.  He went along, flashing his torch.  There was no sound at the thin wall, where he stopped, when he reached it, to listen for the sound of voices in the great hall.  That encouraged him.  He decided that if any soldiers had been left on guard in the place, they would have been in there.  And when he came near to the panel by which he had entered, when he let his torch wink out he saw that there was a light ahead of him.

For a moment he caught his breath, wondering if some enemy had discovered the secret, and was waiting to pounce on him.  But he went on, because he decided that if anyone were waiting they must know already that he was in the tunnel.  And in a moment he came face to face with old Vladimir.