I followed him at a distance of a few yards, neither adopting special precautions to keep concealed, nor taking steps to obtrude myself on his notice. Had it not been that I was wound up to a pitch of intense excitement I might have risked a rude awakening of him, but I was impressed by a conviction that there was still something for me to learn which, were he awake, might be hidden from me. Therefore, I contented myself with watching his movements. It was a wonder to me that he made no mistakes in the paths he traversed, that he did not stumble or falter. He walked with absolute confidence and precision, avoiding low-hanging branches of trees which would have struck him in the face had he been unaware of their immediate vicinity. Nothing of the kind occurred; there was not the slightest obstruction that he did not intelligently avoid; he did not once have occasion to retrace his steps. And yet he was asleep to all intents and purposes but one--that upon which his mind was fixed. When I saw him two or three times pause, with a slight upraising of the dagger, which he clutched firmly in his hand, I knew what that purpose was--I knew that, had he seen Emilius, he would have leapt upon him and stabbed him to the heart, and that then, unconscious of the crime, he would have returned to his bed with an easy conscience. Strange indeed was the double life of this man--the life of sweetness, kindness, justice in his waking moments, of relentless, cruel purpose while he slept. In alliance with the proceedings of which I was at that time a witness, came to my mind the pronouncement of the skilled authorities whom Carew's father had consulted--that should the fatal inheritance transmitted to him take its worst form, the key-note might be found in the affections. It was demonstrated now. Emilius, his enemy, had found his way to his home; the safety and happiness of his wife and child were threatened; and he, prompted by his love for them, was on the watch to guard them, animated by a stern resolve to remove, by an unconscious crime, his enemy from his path. I thought of the tragic occurrences which had taken place in Nerac while he was courting the pure, the innocent maiden Lauretta, and I was weighed down by the reflection that justice had erred, and that the innocent had suffered for the guilty. It was a terrible thought, and it was strange that it did not inspire me with a horror of the man whose footsteps I was following. I felt for him nothing but compassion.