As I have already said, no notion of Bircham was in my mind, and I mention this as evidence that, even if it had been, Harry’s remark would have implied that we were not going through Bircham. The hour lengthened itself into an hour and a half. Then the monster, quite well again, came hooting round the corner, and we got in. “Whack her up, Jack,” said Harry to the chauffeur. “The roads will be empty. You had better light up at once.” The monster, with its eyes agleam, was whacked up, and never in my life have I been carried so cautiously and yet so swiftly. Jack never took a risk or the possibility of a risk, but when the road was clear and open he let the monster run just as fast as it was able. Its eyes made day of the road fifty yards ahead, and the romance of night was fairyland round us. Hares started from the roadside, and raced in front of us for a hundred yards, then just wheeled in time to avoid the ear-flaps of the great triumphant brute that carried us. Moths flitted across, struck sometimes by the lenses of its eyes, and the miles peeled over our shoulders. When It occurred we were going top-speed. And this was It--quite unsensational, but to us quite inexplicable unless my midnight imaginings happened to be true. As I have said, I was in command of the hooter and of the syren. We were flying along on a straight down-grade, as fast as ever we could go, for the engines were working, though the decline was considerable. Then quite suddenly I saw in front of us a thick cloud of dust, and knew instinctively and on the instant, without thought or reasoning, what that must mean. Evidently something going very fast (or else so large a cloud could not have been raised) was in front of us, and going in the same direction as ourselves. Had it been something on the road coming to meet us, we should of course have seen the vehicle first and run into the dust-cloud afterwards. Had it, again, been something of low speed--a horse and dog-cart, for instance--no such dust could have been raised. But, as it was, I knew at once that there was a motor travelling swiftly just ahead of us, also that it was not going as fast as we were, or we should have run into its dust much more gradually. But we went into it as into a suddenly lowered curtain. Then I shouted to Jack. “Slow down, and put on the brake,” I shrieked. “There’s something just ahead of us.” As I spoke I wrought a wild concerto on the hooter, and with my right hand groped for the syren, but did not find it. Simultaneously I heard a wild, frightened shriek, just as if I had sounded the syren myself. Jack had felt for it too, and our hands fingered each other. Then we entered the dust-cloud.