Just a moment though! Yes. W. pricked up his ears. 'Here's one coming,' he said casually, as if it had no interest for us. We could hear the drone of an engine from the north. Shortly afterwards we saw a tiny speck in the sky which rapidly grew bigger and bigger. A biplane! 'Ours!' I could hardly conceal my joy. In a few moments he was over us, and we should soon know where he was going to land. It was scarcely 1200 feet up as he passed us. Eagerly we watched his direction. But the fellow made no preparation to land; he flew on and on, straight ahead in his original direction. In a few minutes he was only a dot in the sky again. We looked at each other questioningly, but we got no answer. We discussed the pros and cons, and finally decided to go forward for a while. Perhaps we should find some clue on the way. If not, we decided we should rest for a while in a wood or cornfield and wait to see if other aeroplanes came along which might give us a clue to their objective. The sun rose higher and higher and beat down mercilessly on our tired heads. Our thirst was becoming unbearable. If we could only find water! In the distance we could see a factory. It looked as if it were by the waterside, and we turned our steps towards it. High bushes hid us from the eyes of the operatives, and we were able to approach the factory unseen. We had not been mistaken--we had come to a river. It was none other than the Trent, which we had crossed during the night. But what a filthy, smelly stream it was! The surface shimmered with all the colours of the rainbow. Then we suddenly remembered that below Donington there was one succession of factories of all sorts, dye-works, and so forth, along the river. Angrily we turned about and looked round for a hiding-place--which we soon found.