He walked between the tables, tapping smartly with his heels, took up a paper knife, dropped it after a vague glance along the blade; then happening upon the piano, struck a few chords again and again, vigor- ously, standing up before the keyboard with an atten- tive poise of the head like a piano-tuner; closing it, he pivoted on his heels brusquely, avoided the little terrier sleeping trustfully on crossed forepaws, came upon the stairs next, and, as though he had lost his balance on the top...