At the far end of Thorhaven towards the north was a little square house surrounded by a privet hedge. It had a green door under a sort of wooden canopy with two flat windows on either side, and seemed to stand there defying the rows and rows of terraces, avenues and meanish semi-detached villas which were creeping up to it. Behind lay the flat fields under a wide sky just as they had lain for centuries, with the gulls screaming across them inland from the mud cliffs, and so the cottage formed a sort of outpost, facing alone the hordes of jerry-built houses which threatened to sweep on and surround it.