It was late in the year now, but the day was warm and very calm and fine. At the London terminus where he alighted he had a strong feeling that he was watched, and when he took the train back to Delsby he still had the idea that he was being kept under observation.
He felt he had been wise in deciding to carry out Deede Dawson's instructions so closely, for he was sure that if he had failed to do so in any respect alarm would have been taken at once, and warning telegrams gone flying on the instant to all concerned. Then that self-baited trap at Brook Bourne Spring, wherein he hoped to see his enemy taken, would remain unapproached, and all his work and risk would have gone for nothing.
When he alighted at his destination he was a little before time, and so he got himself something to eat at a small public-house near the station before starting on his fifteen-mile walk across country. Though he was not sure, he did not think any one was observing him now. Most likely his movements up to the present had appeared satisfactory, and it had not been thought necessary to watch him longer.
But he was careful to do nothing to rouse suspicion if he were still being spied upon, and after he had eaten and had a smoke he started off on his long tramp.
Even yet he was careful, and so long as he was near the village he made a show of avoiding observation as much as possible. Later on, when he had made certain he was not being followed, he did not trouble so much, though he still kept it in mind that any one he met or passed might well be in fact one of Deede Dawson's agents.
He walked on sharply through the crisp autumn air, and in other circumstances would have found the walk agreeable enough. It was a little curious that as he proceeded on his way his chief preoccupation seemed to shift from his immediate errand and intense eagerness to discover the identity of his unknown foe, with whom he hoped to stand face to face so soon, to a troubled and pressing anxiety about Ella.
Up till now he had not thought it likely that she was in the least real danger. He knew Simmonds, the man Walter had promised to put on watch at Bittermeads, and knew him to be capable and trustworthy. None the less, his uneasiness grew and strengthened with every mile he traversed, till presently her situation seemed to him the one weak link in his careful plans.
That the trap the unknown had so carefully laid for himself to be taken in, would assuredly and securely close upon him, Dunn felt certain enough. Walter would see to that. Sure was it, too, that the enterprise Deede Dawson had planned for himself and Allen at the Abbey must result in their discomfiture and capture. Walter would see to that also. But concerning Ella's position doubt would insist on intruding, till at last he decided that the very moment the Brook Bourne Spring business was satisfactorily finished with he would hurry at his best speed to Bittermeads and make sure of her safety.
Absorbed in these uneasy thoughts, he had insensibly slackened speed, and looking at his watch he saw that it was two o'clock, and that he was still, by the milestone at the roadside, eight miles from his destination.
He wished to be there a little before the time arranged for him by Deede Dawson, and he increased his pace till he came to a spot where the path he had to take branched off from the road he had been following. At this spot a heavy country lad was sitting on a gate by the wayside, and as Dunn approached he clambered heavily down and slouched forward to meet him.