‘Now!’

Two reports rang out; there was a groan and a strong smell of gunpowder. The lantern had been dashed to the ground and extinguished, and judging by the sounds, the other Russians were beating a hasty retreat.

All remained silent for some time, then Jack said, ‘We’ve driven them off for the moment; but I should not be surprised if they waited at the mouth of the cave for us. If they do catch us our fate is sealed. After our usage of them they won’t trouble to take us prisoners.’

The lads sat down and waited for what seemed ages, but which was in reality about an hour. Then they crept noiselessly to the mouth of the cave and looked out.

There, sitting round a small fire which they had somehow managed to make, were nine Russian soldiers, one having his hand bound up. Their muskets were all close handy, and they seemed ready to leap to their feet at a moment’s notice.

Jack and Will crawled back again into the cave, and spite of themselves presently fell asleep. How long Jack slept he had not at the moment the faintest idea. He awoke Will softly.

‘Hist,’ he cried, ‘be silent; we’ll go and see if the Russians are still watching.

They got up and blundered slowly along in the pitchy darkness, but they did not come to the mouth of the cave.

‘Funny,’ said Will; ‘seems we’ve come a tremendous distance, and it’s strange how fresh the air is in here.’

‘I wonder whether there is more than one exit,’ said Jack.