"And meanwhile my friend is without proper treatment, and may have to lose his leg or be lamed for life. You have no stomach any more than I for being a prisoner with the Bulgars. Don't you think we had better push on, and try to slip past the scouting party? It is not likely they will go far in advance of their main body. Isn't there a way over the hills without taking to the track?"

"If we were on foot we might steal through the country, but not with the cart. That holds all my worldly possessions. And your friend cannot be moved without it. Look, monsieur; do not my eyes, old as they are, see masses of men moving on the plain yonder?"

"You are right," said Burton, after a glance northward. "The main body is on the move. We must decide at once. Let us carry Captain Enderby to the cart, push on, and trust to luck."

Hurrying back to the gully, they carried the injured man to the cart. While the Serb led this back to the track, Burton took the precaution of removing the carburetter and one or two other essential parts from the engine of the aeroplane. This was badly smashed, but it was just as well not to leave anything of possible use to the enemy. Then he hauled the machine-gun from the litter that covered it, expecting to find it hopelessly shattered. To his surprise it appeared to have suffered no injury except superficial dents, and the ammunition belts were evidently perfect. Hurrying after the others with the engine parts, he laid these on the cart, then took young Marco back with him to help him carry away the machine-gun and ammunition.

"We've saved something from the wreck, old man," he said to Enderby as he came up with the gun on his back.

"Hardly worth while, is it?" asked the captain. "There's precious little chance of our getting through. Hadn't you better shy it into a gully in case they capture us?"

"I will at the last minute if things look hopeless; but we'll stick to it as long as we can."

All being ready they set off along the track. Old Marco sent the boy ahead to scout. The woman resumed her seat on the cart, where a comfortable place had been arranged among the baggage for Captain Enderby. The two men followed on foot, pushing at the wheels where the gradient was too steep for the wearied oxen.

So they toiled along for upwards of an hour. Young Marco ahead had not caught sight of the horsemen; there was no sign of the enemy in the rear. It was the old man's hope that there would be time, if danger threatened, to rush the cart into some hollow or some gap between the rocks. Such a threat was more likely to arise from the scouting party than from the larger force behind, and the boy, as instructed by his grandfather, kept sufficiently in advance to give timely warning.

The track was continuously up hill, broad at some points, at others so narrow that the cart was only just able to pass between the rocky borders, sometimes as low as kerbstones, sometimes rising to a height of many feet. The frequent windings prevented the travellers from getting a direct view for any considerable distance ahead. Every now and then they had glimpses of the watch-tower which Burton had previously noticed, and which they were gradually approaching. At such times he scanned it through his glasses, half expecting to find that some of the scouting party had ascended it to survey the surrounding country. But no human figures yet showed above the summit.