The result, after a while, was, as we have seen, a great increase in prosperity, testified to by the abundant Perpendicular work in almost every parish church in England. But the immediate effect was fearful distress, and a chaotic dislocation of the old feudal relationships, giving birth to the socialistic dreams which for a moment so vainly tried to materialise themselves in the anarchical outbreak which we call Wat Tyler's Rebellion. An example of this dislocation of ordinary conditions is furnished by the Papal registers, which tell us that the rectory of this very Bassingbourn (estimated at the equivalent of no less than L1,200 per year) was made over, in 1410, to the Chapel Royal of St. Martin's-le-Grand, London, "considering that the said chapel hath been ruined by the Great Storm, and its lands lie waste for lack of labourers through the pestilence." The "great storm" here referred to took place on St. Maur's Day (January 15th), 1361. Of both storm and pestilence we shall find a most interesting record in the church of Ashwell, the next and last place which we should see in this corner of the county. To reach it we have, indeed, to cross the border and go some half mile beyond; but though politically in Hertfordshire, Ashwell physically belongs to Cambridgeshire. For here is the source of the Cam, and such a source as few would dream of for the sluggish unclear stream that we see at Cambridge. In the midst of the village the ground sinks into a sort of amphitheatre, some 100 yards in length by thirty in breadth and ten in depth, with abrupt sides covered with brushwood and overshadowed by ancestral ash-trees. All round the floor of this gush forth springs upon springs of the brightest, most sparkling water; so copious that when the infant stream escapes through a breach towards the north it is already nearly thirty feet broad. No prettier river-source is to be found throughout the length and breadth of England. The ash-trees, however, are not, as one is apt to think at first, the origin of the name, but its consequence. The first syllable really embodies that Celtic word for water which, as Axe, Exe, Esk, and Usk, meets us in so many places all over Great Britain; and this syllable, at some far-back date, suggested the planting of ashes around the well. [Illustration: _Ashwell._] Not far from these bounteous springs rises the splendid tower of the church, springing high into the air with the same undaunted Early English ambition which raised the spire of Salisbury. And on its wall (inside) is carved, in rude and deeply incised lettering of Old English style, varied by some curiously Greek characteristics, the record already spoken of, dealing with the Black Death and the storm. This consists of four lines, intended for Latin elegiacs, again with a Greek touch, and runs thus: