And with a serious expression on his face, he began to tell the Orloffs about the cholera, and the means to be taken to counteract it; trying to express himself as clearly and as simply as possible. Whilst talking, he was busily examining the room, feeling the walls with his hands, looking behind the door, stooping down to peep into the stove, and sniffing about everywhere with his nose. His voice, which had not yet completely changed, alternated between bass and treble, and the simple forms of words which he used impressed themselves unconsciously on the minds of his audience. His brown eyes gleamed, and seemed full of youthful enthusiasm for the work to which he had dedicated himself so earnestly and simply. Grigori hung eagerly on every one of his words, and followed with curiosity all his movements. Matrona listened also, without understanding very much; the police-officer had already gone off. "Be careful to use chloride of lime as I have told you. Close by here is a new building; for a couple of kopecks they will give you a whole heap of it. And, about the drink, it's better to leave it alone for a while, my friend. Well, good-day to you I I shall soon be looking you up again...." And he disappeared as quickly as he came, and left as it were as a recollection of his pleasant visit, a contented, happy smile on the faces of the couple. For a time they were silent, both looking at each other, unable to put into words the impression which this sudden visit, with all its revelation of well-directed energy, had made on the monotonous tenor of their dull automatic life. "Just think, now!" began Grigori at last, shaking his head, "what a sorcerer that fellow is!... And they tell us that those are the men who poison people! Can a man with a face like that have anything to do with those sort of goings on?... And that cheerful clear voice, and all the rest of it!... No, it's all open and above board, it's all straight! He comes in quite simply--'Here I am, my good people; listen to what I have to say!' Chloride of lime, that can't hurt And citric acid, that's just an acid, and nothing more.... The principal thing, however, is to keep clean, to have everything clean indoors, and to attend to the slop-bucket Can a man be poisoned by attending to those sort of things? They must be stupid folk who talk like that!... Poisoners, they call them? Yes, that's it.... To think that such a dear fellow as that could be a poisoner! Pfui!... 'He who works may drink a glass,' he said; 'of course with moderation.' Did you hear, Matrona? Well, pour me out one, then. Is there one left?" Matrona hastened to pour him out a glass of vodka, which she produced from some hiding-place. "He is really a very nice fellow; there is something so friendly about him," she said, still smiling at the thought of the student. "But who can say what the others may be like? Perhaps they are indeed hired to----" "What do you mean?... Hired to do what?" roared Grigori.