The new nave was completed during this episcopate. It soared high above the west front of Remigius, which had to be patched up in a most unfortunate manner before it could do duty under the altered conditions. The experiment was tried of putting a piece of new cloth upon an old garment, and, so far as appearance was concerned, it was a failure. The old Norman work was surrounded by a huge arcaded wall, dislocating the whole façade from the structure behind, and hiding the lower portions of the western towers. The deep recess in the centre was raised far higher, and finished with a pointed arch. The only piece of honesty about the new front was the gable in the middle, which certainly did follow the line of the roof. The wall was flanked by two octagonal turrets, each surmounted by a statue. Beyond the aisles of the nave, two chapels were erected on either side, enclosing the outside walls of the last bay of Remigius' church and together forming what might almost be called a third transept. On the south side of the minster, the canons' vestry was added to the eastern transept, and the Galilee porch to the western. Lastly, the lower portion of the magnificent central, or "Broad," tower was erected, taking the place of the tower which had fallen soon after Grosseteste's appointment. Matthew Paris tells us a curious story that one of the canons of the minster was declaiming from the pulpit against the actions of Bishop Grosseteste; as he uttered the words "If we were to be silent, the very stones would cry out for us," the new central tower came crashing down, burying several people in the ruins. This catastrophe he assigns to the year 1239. The Chronicles of the Abbot of Peterborough record the event as occurring in the year 1237. There the accident is ascribed, with far greater probability, to the insecurity of the foundations (_propter artificii insolentiam_). The Annals of Dunstable give the same date as Matthew Paris. The fall of the tower crushed part of the vault of St. Hugh's choir, and injured some of the piers, which had to be reconstructed. We may be quite safe in assuming that the new tower was begun soon after, and the reticulated pattern which covers its lower part, both inside and out, may be taken as a mark of Grosseteste's work. The tower was afterwards made higher, and a timber spire added; but Grosseteste's tower was also finished with a spire of timber and lead; the stump of the central shaft may still be seen in the clock chamber. The ten-sided chapter-house, formerly attributed to St. Hugh, was constructed while the nave was in progress. It bears the characteristics of a later period than St. Hugh's choir, and since it is mentioned in the "Metrical Life of S. Hugh," written between 1220 and 1235, it could not have been erected after the latter date.