As he pondered the matter he was inclined to think that he had made a mistake in doing what he had done. Such a fuss is made about a thing of that sort that, in any event, one runs a risk. Had he had more time to appreciate exactly what would be the nature of the risk in his own case he might have--hesitated. If he had he would have been deposed from his cousin's good graces, and--to adopt her sire's rather melodramatic language--have been "branded as a felon," so that he would not have been much better off. Looking at it philosophically the result of what he had done was this: that whereas, if he had let his uncle have his own way, ruin was certain, as things were he had at least a fighting chance of postponing the evil day--perhaps to an indefinite period. More; in the meanwhile he could have a rattling good time. And he would have it. He smiled as he made himself that promise.

All the same, though he smiled, he realised that if he proposed to have a good time he must not continue to take his ease where he was--with his uncle on the seat at the other end. If he seriously wished the world to take it for granted that Graham Patterson had committed suicide, he must not be found in the same compartment. That was sure. He had been told by someone, or had read somewhere, that every express train, though assumed to be "non-stopping," stopped at least once, because a signal was against it, or at least slowed down sufficiently to enable an agile passenger, with safety, to alight. So far that train had neither stopped nor slowed. His watch told him that it was about twenty to ten--ten minutes ago his uncle had been alive. It seemed longer ago than that. He had a fair knowledge of the line by daylight; it was different at night. Objects--even stations--were difficult to distinguish. He peered through the open window without thrusting out his head. They seemed to be running through open country, possibly on the top of the ballast. He could make out lights, though they were few and far between; they seemed to be passing a number of trees, with a big building beyond. They crashed through a station--it was Earlswood; they had just passed Earlswood Asylum. Immediately they would be on the new part of the line, which avoids the South-Eastern station at Redhill. There was no station between this and Purley. He might leave the train anywhere with comparative safety if it would only slow a little. To attempt to alight while it was moving at that rate through the darkness would be equivalent to committing suicide. At the best he could not hope to avoid serious injury. He must wait--till it slowed.

The whistle on the engine sounded; the train began to slow. Instantly he was leaning forward, his fingers on the handle, which was inside the door. The train slowed still more; it entered a tunnel, slowing all the while; in the heart of the tunnel it stopped--dead. The gods were on his side. Yet not for an instant did he lose his presence of mind. The signal was against them--that was why they had stopped. Was it on the left or the right? On the signal side the guard would possibly have his head out of the carriage with an eye for it; possibly some of the passengers might be observing it also. It would be fatal to get out on that side; his door would be seen opening; he might be seen to alight; he would be jumping out of the frying-pan into the fire; all sorts of consequences might accrue. He looked out of his own window; there was no signal in front or behind. Then it was on the other side, on the left, against the wall of the tunnel. He looked on to the six-foot way. He could see the whole length of the train; not a sign of a head at any of the windows. He had already turned the handle, opening the door just wide enough he stepped on to the footboard, closed the door, and dropped on to the permanent way. He had left his uncle to continue his journey alone. Lest his upstanding figure might be visible to someone, he crouched as close as he could to the ground. The train began to move very slowly. The door of the compartment next to that which he had just left was opened, a figure came on to the footboard, closed the door, sprang on to the ballast while the train was already in motion. For a moment Rodney was the victim of a gruesome delusion; to him it was as if the door of his own compartment had been opened; as if Graham Patterson had alighted at his side. He pressed the tips of his fingers into his palms to keep himself from exclaiming.

CHAPTER XI

[THE STRANGER]

The train went slowly rumbling by; who looked out of the windows Rodney neither knew nor cared. He was conscious of the guard's van passing, then the train had gone. He could see the tail lights moving quicker and quicker through the darkness. He himself continued motionless. He had realised by now that it was not his uncle who had alighted; that it was the door of the next compartment which had been opened. He could not believe that his own movements had been observed. He doubted if they could have been seen by a person who had not actually got his head out at the moment--even by his next door neighbour. He was certain that no head had been out. The thing had been a coincidence--a strange one, but nothing more. Someone also had reasons for wishing to quit the train in an unusual manner; someone who was unaware that he was out already. The chances were that he had not been noticed; that, if he kept quite still, he would not be noticed. The stranger would blunder along without ever becoming cognisant of his near neighbourhood; whichever way the stranger went, he would go the other.

Now that the train had left, it was very still in the tunnel; the air was close, full of smoke, which was bad both for the throat and the eyes. Something had dropped once or twice on Rodney's shoulder. He had heard that it was sometimes damp in tunnels; possibly it was moisture dropping from the brickwork overhead. He would have liked to move so as to avoid it, but was reluctant to make a sound--till the stranger had moved. He wondered what the stranger was doing; silence continued for what seemed to him to be a preternatural length of time. Possibly, less fortunate than himself, the stranger had been hurt in alighting, which explained the stillness. If that were so, his own position might be difficult. If he moved first the stranger might claim his help, might make a fuss if he refused it--such a fuss that the fact that he had left the train would be discovered.

Still not a sound. Momentarily the situation was becoming more delicate. He could not remain crouched down like that for ever, with big drops of something falling on to his shoulder. What should he do? The question was answered for him.

"Caught you!"

The words were whispered close to his ear. He stood straight up suddenly, startled half out of his wits. His impulse was to fly--anywhere, anyhow. Then that wonderful presence of mind of his, which never left him long, came back; he realised that haste on his part might involve disaster. He stood bolt upright, quite still, with fists clenched, prepared for anything.