"Yes: the path is simply heaped with rubbish. Coming back it was like scrambling over shingle. But a few hours' work will clear the lot away. Now what's the next thing?"

"As it's getting dusk I propose to withdraw the gun to the mine. But we must hold this breastwork as long as we can, and it occurs to me that if we alter its angle a little we can enfilade it from our own breastwork when it becomes necessary to fall back on that. It will still protect us from attack down stream, owing to the bend."

"Isn't it worth while to block up the track again?"

"It would use up too much dynamite. Our stock is getting appallingly low. We may want it all for bombs. Besides, if we block up the track farther down we shan't see our enemy."

"But I can always scout in the aeroplane."

"You forget that our petrol isn't unlimited. I had a look in the shed this morning, and there isn't much left. The paraffin you brought only replaced what you lost from the leaky cans. We shall have to economize now, and use the aeroplane only when we must."

"Very well then. If you see about altering the breastwork I'll get the gun dragged in. And there are these poor wounded wretches. Their moans are horrible. What can we do for them?"

"We mustn't take them into our compound. We haven't food enough to support prisoners. I have it! We'll send off the Kalmuck prisoners we've got, and tell them that they can bring up a dozen of their friends under flag of truce to carry off their wounded. That'll relieve us of all responsibility. And now let's get to business. We haven't too much time."

These arrangements were duly carried out. While Lawrence escorted the gun to the mine, Bob set the men to pull down the breastwork, and re-construct it so that it stood almost perpendicular to his own entrenchment a hundred yards up stream. In its new position it would be of very little use to the enemy should they re-capture it, for on whichever side of it they happened to be, they would be swept by the fire of the men posted at the other.

By the time the work was completed darkness had fallen. Then Lawrence dismissed the Kalmuck prisoners as he had suggested, and followed them to the breastwork to have a final consultation with his brother.