"No; but there's been a bit of sniping. I don't think they could have seen us going into the cottage, but they must have caught sight of us on the road. I heard the smack of a bullet on the back of the wagon, and was thankful when I got under the trees."

They went on. Beyond the trees the road ran straight up a long gradual incline. To the left, on the crest, stood a small cottage, enclosed, with its garden, within a brick wall. They had ridden only a few yards up the ascent when they heard the crackle of rifle fire ahead.

"The Germans must have seen or guessed that the men went to the cottage," said Kenneth. "We had better leave the machine and go up across the field. The cottage and garden wall will give us cover. It will be just as well to learn what's going on."

They left the road and ran up the grassy hill towards the cottage. On nearing the crest they became aware that the firing they had heard was being directed from the front of the cottage. There was no answering fire, but it was clear that the little party in the cottage was expecting an attack. Being an observation party, to whose success secrecy was essential, it was equally clear that they would not have fired except from urgent necessity.

"Ride back and tell the colonel," said Kenneth. "I'll go on and lend a hand."

At another moment it would have been Harry's way to dispute his friend's right to the dangerous part, and to settle the matter by the spin of a coin. It might have occurred to him, too, that the call for support would reach the colonel by telephone more quickly than he could convey it on the bicycle. But guessing that the position was critical, he turned his back at once, ran down the hill, mounted the machine, and rode back at his utmost speed. Kenneth meanwhile had vaulted the garden wall, and dashed into the cottage through the open door at the back.

During the next ten or fifteen minutes events crowded one upon another more rapidly than can be related, and we must pause for a little to make the position clear. The cottage stood on a spur projecting slightly eastward from the general line of the ridge. Below it the ground sloped gently down to the road which Kenneth and Harry had travelled on the previous day. Beyond that the country undulated for several miles. About a mile away was a young plantation. The road ran right and left, with considerable windings, and a mile and a half away, on the right, was the ruined hamlet through which the motor riders had passed. A little below the cottage a stone wall of no great height stretched across the ground, ultimately meeting the road. On the eastern side of it--that is, in the direction of the German lines--was a ditch, shallow and empty. During the night a full regiment of Germans, reorganised after their recent repulse, had occupied the wood and the hamlet, the advance guard of a large body whose purpose was to carry their line forward just as the British on their side were doing. The British engineer party had not completed the installation of the telephone in the cottage when the lieutenant saw the Germans debouching from the wood towards the hamlet, and considerable movement in the hamlet itself. Ordering his men to cut loopholes in the wall of the front room on the upper storey, and to fire if the enemy appeared to be advancing on the cottage, he worked at the telephone, and had almost finished when the German scouts were seen creeping up the hill about half a mile away. Below them was a company in extended order; below them again a second company in support. They were coming straight towards the cottage, and the men, in obedience to their officer's orders, had fired.

Kenneth dashed into the cottage. The lower floor was empty. He rushed up the stairs into the only room above. Four men were posted at the loopholes; the lieutenant was screwing on the receiver of the telephone. He looked up as Kenneth entered.

"Are they coming on already?" he asked.

"No; but a pal of mine has ridden back to tell the colonel."