Colonel Tempest acted with promptitude, but though he was as expeditious as he knew how to be, that was not saying much. His continual dread was that others might be beforehand with him. He had at this time a dream that recurred, or seemed to recur, over and over again--that he was running blindly at night, and that unknown adversaries were coming swiftly up behind him, were breathing close, and passing him in the darkness, unseen, but felt. It haunted him in the daytime like a reality. Superstition would not be superstition if it were amenable to reason. Punishment hung over him like a sword in mid-air--it might fall at any moment--what form of punishment it would be hard to say--something evil to himself. If he struck down another might not the Almighty strike him down? It seemed to him that God's hand was raised. "Sin no more." Wipe it out. Obliterate it. Expiate it. Quick, quick. He set to work in feverish haste to find out Larkin. But although he had a certain knowledge of how to approach gentlemen of Swayne's class, he could not at first unearth Larkin. The habitation of the wren is not more secluded than that of some of our fellow-creatures. Colonel Tempest went very quietly to work. He never went near the address given him; he wrote anonymous letters repeatedly, suggesting a personal interview which would be found greatly to Mr. Larkin's advantage. Mr. Larkin, however, appeared to take a different view of his own advantage. It was in vain that Colonel Tempest said he should be walking on the Thames Embankment the following evening, and would be found at a given point at a certain hour. No one found him there, or at any other of the places he mentioned. He took a good deal of unnecessary exercise, or what appeared so at the time. Still he persisted. While the quarry remained in London, the hunter would probably remain there also. John had not gone yet. Colonel Tempest went on every few days making appointments for meeting, and keeping them rigorously himself. A fortnight passed. Larkin made no sign. At last Colonel Tempest heard that John was leaving town. He went to see him, and came away heavy at heart. John was out; and the servant informed him that Mr. Tempest was going to Overleigh the following morning. Colonel Tempest had a presentiment that a stone would be dropped between the points of the Great Northern. The train would come to grief, somehow. It would all happen in a moment. There would be one fierce thrust in the dark which he should not be able to parry. And if John got safe to Overleigh he would be followed there. The shooting season was coming on, and some one would load for him, and there would be an _accident_.