"Now you, Colonel Brett, had been saying--before we learned these things from Mr. Hardwick--that Sneathy's behaviour of late had become so bad as to seem that of a madman. Then there was the story of his sudden attack on a tradesman in the village, and equally sudden running away--exactly the sort of impulsive, wild thing that madmen do. Why then might it not be reasonable to suppose that Sneathy _had_ become mad--more especially considering all the circumstances of the case, his commercial ruin and disgrace and his horrible life with his wife and her family?--had become suddenly much worse and quite uncontrollable, so that the two wretched women left alone with him were driven to send in haste for Henry and Robert to help them? That would account for all. "The brothers arrive just after Sneathy had gone out. They are told in a hurried interview how affairs stand, and it is decided that Sneathy must be at once secured and confined in an asylum before something serious happens. He has just gone out--something terrible may be happening at this moment. The brothers determine to follow at once and secure him wherever he may be. Then the meaning of their conversation is plain. The thing that 'must be done, and at once,' is the capture of Sneathy and his confinement in an asylum. Henry, as a doctor, would 'know what to do' in regard to the necessary formalities. And they took a halter in case a struggle should ensue and it were found necessary to bind him. Very likely, wasn't it?" "Well, yes," Mr. Hardwick replied, "it certainly is. It never struck me in that light at all." "That was because you believed, to begin with, that a murder had been committed, and looked at the preliminary circumstances which you learned after in the light of your conviction. But now, to come to my actual observations. I saw the footmarks across the fields, and agreed with you (it was indeed obvious) that Sneathy had gone that way first, and that the brothers had followed, walking over his tracks. This state of the tracks continued until well into the wood, when suddenly the tracks of the brothers opened out and proceeded on each side of Sneathy's. The simple inference would seem to be, of course, the one you made--that the Fosters had here overtaken Sneathy, and walked one at each side of him. "But of this I felt by no means certain. Another very simple explanation was available, which might chance to be the true one. It was just at the spot where the brothers' tracks separated that the path became suddenly much muddier, because of the closer overhanging of the trees at the spot. The path was, as was to be expected, wettest in the middle. It would be the most natural thing in the world for two well-dressed young men, on arriving here, to separate so as to walk one on each side of the mud in the middle.