"No, not on that, but on his own words. He came here on two successive evenings to see Sofya Semyonovna. I've shown you where they sat. He made a full confession to her. He is a murderer. He killed an old woman, a pawnbroker, with whom he had pawned things himself. He killed her sister too, a pedlar woman called Lizaveta, who happened to come in while he was murdering her sister. He killed them with an axe he brought with him. He murdered them to rob them and he did rob them. He took money and various things.... He told all this, word for word, to Sofya Semyonovna, the only person who knows his secret. But she has had no share by word or deed in the murder; she was as horrified at it as you are now. Don't be anxious, she won't betray him."

"It cannot be," muttered Dounia, with white lips. She gasped for breath. "It cannot be. There was not the slightest cause, no sort of ground.... It's a lie, a lie!"

"He robbed her, that was the cause, he took money and things. It's true that by his own admission he made no use of the money or things, but hid them under a stone, where they are now. But that was because he dared not make use of them."

"But how could he steal, rob? How could he dream of it?" cried Dounia, and she jumped up from the chair. "Why, you know him, and you've seen him, can he be a thief?"

She seemed to be imploring Svidrigaïlov; she had entirely forgotten her fear.

"There are thousands and millions of combinations and possibilities, Avdotya Romanovna. A thief steals and knows he is a scoundrel, but I've heard of a gentleman who broke open the mail. Who knows, very likely he thought he was doing a gentlemanly thing! Of course I should not have believed it myself if I'd been told of it as you have, but I believe my own ears. He explained all the causes of it to Sofya Semyonovna too, but she did not believe her ears at first, yet she believed her own eyes at last."

"What... were the causes?"