no definite motive towards the sound to see what’s the matter. His head is still clouded with his attack, his faculties are half asleep; but, once in the garden, he walks to the lighted windows and he hears terrible news from his master, who would be, of course, glad to see him. His mind sets to work at once. He hears all the details from his frightened master, and gradually in his disordered brain there shapes itself an idea—terrible, but seductive and irresistibly logical. To kill the old man, take the three thousand, and throw all the blame on to his young master. A terrible lust of money, of booty, might seize upon him as he realized his security from detection. Oh! these sudden and irresistible impulses come so often when there is a favorable opportunity, and especially with murderers who have had no idea of committing a murder beforehand. And Smerdyakov may have gone in and carried out his plan. With what weapon? Why, with any stone picked up in the garden. But what for, with what object? Why, the three thousand which means a career for him. Oh, I am not contradicting myself—the money may have existed. And perhaps Smerdyakov alone knew where to find it, where his master kept it. And the covering of the money—the torn envelope on the floor?
“Just now, when the prosecutor was explaining his subtle theory that only an inexperienced thief like Karamazov would have left the envelope on the floor, and not one like Smerdyakov, who would have avoided leaving a piece of evidence against himself, I thought as I listened that I was hearing something very familiar, and, would you believe it, I have heard that very argument, that very conjecture, of how Karamazov would have behaved, precisely two days before, from Smerdyakov himself. What’s more, it struck me at the time. I fancied that there was an artificial simplicity