At Bellenglise (at the bend of the canal two miles south of Bellicourt) the Germans had made for themselves an extraordinary underground tunnel shelter, of which Plate 85 shows one of the entrances. We were told by the villagers that it was a kilometre and a half in length, but did not verify this. In any case it was certainly fitted up as barracks and quarters of the most extensive nature, for a thousand prisoners were taken in it with no resistance. It was also provided with electric light, and we are told that the captured electricians who were instructed to start the dynamo for us had to confess the existence of a booby-trap to blow up the whole affair when the switch was closed, and, of course, to remove it. St. Quentin is five miles south of Bellenglise, but the crossing of the Hindenburg Line at the canal tunnel at St. Tronquoy, a necessary preliminary to taking the city, proved a task almost as difficult, but quite as successfully carried out, as the Bellicourt crossing. It was effected on the 30th of September. St. Quentin itself, which had been within the German lines ever since 1914, was entered by the French First Army on the next day. When it became clear to the Germans that they would have to give up the town, which was but little damaged, they prepared a characteristic piece of devilment, one which could not by any exercise of imagination be supposed to have the slightest military consequence. They cut out large recesses (each of about a couple of cubic feet) in the walls and columns of the cathedral, with the intention of using the cavities so made for blasting charges to wreck the whole building (Plate 86). I did not count the number of these holes, but it was officially stated to be ninety! Happily the French got into the town twenty-four hours before their entry had been expected, so that the church still stands (not, of course, without some other damage), with the holes and the blocks cut out from them visible as damning evidence of what otherwise would be no doubt denied. But very much the same seems to have been done by the same savages at other places, as far apart even as Péronne and Beersheba.