All this, of course, was plausible enough. During my recital I glanced at Polina, but nothing was to be discerned on her face. However, she had allowed me to fire up without correcting me, and from that I concluded that it was my cue to fire up, and to conceal the fact that I had been playing on her behalf. “At all events,” I thought to myself, “she, in her turn, has promised to give me an explanation tonight, and to reveal to me something or another.”