"'Yes,' said the Professor; 'connoisseurs consider that Krespel's violin-making is unapproachable at the present day. Formerly, when he turned out any special _chef d'[oe]uvre_, he would allow other people to play upon it; but now he lets no one touch them but himself. When he has finished a fiddle, he plays upon it for an hour or two (he plays magnificently, with a power and an amount of feeling and expression which the greatest professional violinists rarely equal, let alone surpass), then he hangs it up on the wall beside the others, and never touches it again, nor lets anyone else lay hands upon it.' "'And Antonia?' I eagerly asked. "'Well, _that_,' said the Professor, 'is an affair which would make me have a very shady opinion of Krespel, if I didn't know what a thoroughly good fellow he is; so that I feel convinced there is some mystery about it which we don't at present fathom. When he first came here some years ago, he lived like a hermit, with an old housekeeper, in a gloomy house in ----Street. His eccentricities soon attracted people's attention, and, when he saw this, he soon sought and made acquaintances. Just as was the case in _my_ house, people got so accustomed to him that they couldn't get on without him. In spite of his rough exterior even the children got fond of him, though they were never troublesome to him, but always looked upon him with a certain amount of awe which prevented over-familiarity. You have seen how he attracts children by all sorts of ingenious tricks. Everybody looked upon him as a regular old bachelor and woman-hater, and he gave no sign to the contrary; but after he had been here some time, he went off on some excursion or other, no one knew where, and it was some months before he came back. The second evening after his return, his windows were lighted up in an unusual way--and that was enough to attract the neighbours' attention. Presently, a most extraordinarily beautiful female voice was heard singing to a pianoforte accompaniment. Soon the tones of a violin were heard joining in, responding to the voice in brilliant, fiery emulation. It was easy to distinguish that it was Krespel who was playing. I joined the little crowd assembled outside the house myself, to listen to the wonderful concert, and I can assure you that the greatest prima-donnas I have ever heard were poor every-day performers compared to the lady we heard that night. I _never_ heard any one sing with such marvellously touching expression, and such absolute finish of execution; never had had any idea of such long-sustained notes, such nightingale roulades, such crescendoes and diminuendoes, such swellings to an organ-like _forte_, such dyings down to the most imperceptible whisper. There was not a soul in all the crowd able to resist the magic spell of this wonderful singing; and when she stopped, you heard nothing but sighs breaking the silence. It was probably about midnight, when, all at once we heard Krespel talking