Today, however, from the first chord I had felt a change for the worse, a sinister change. During vespers it had been chiefly the chancel organ which supported the beautiful choir, but now and again, quite wantonly as it seemed, from the west gallery where the great organ stands, a heavy hand had struck across the church at the serene peace of those clear voices. It was something more than harsh and dissonant, and it betrayed no lack of skill. As it recurred again and again, it set me thinking of what my architect’s books say about the custom in early times to consecrate the choir as soon as it was built, and that the nave, being finished sometimes half a century later, often did not get any blessing at all: I wondered idly if that had been the case at St. Barnabé, and whether something not usually supposed to be at home in a Christian church might have entered undetected and taken possession of the west gallery. I had read of such things happening, too, but not in works on architecture.