So to have lost it was an annoyance and a disturbance, for the point was critical.

We had already learnt by our experience of the way between Dorking and Reigate, that when the escarpment is too steep to bear a track the Old Road will mount to the crest, and we saw before us, some two miles ahead, that portion of the Surrey hills known as Whitehill or (on the slopes) Quarry Hangers, where everything pointed to the road being forced to take the crest of the hill. The escarpment is there extremely steep, and is complicated by a number of sharp ridges with little intervening wedges of hollow, which would make it impossible for men and animals to go at a level halfway up the hillside. The Old Road then, certainly, had to get to the crest of these Downs before their steepness had developed. On the other hand the top of the crest was a stiff and damp clay which lasted up to the steep of Quarry Hangers.

The pilgrims of the Middle Ages probably went straight up the hill from Merstham by an existing track, got on to this clay, and followed Pilgrim's Lane along the crest—some shrine or house of call attracted them. The prehistoric road would certainly not have taken the clay in this fashion. On every analogy to be drawn from the rest of its course it would climb the hill at a slow slant, keeping to the chalk till it should reach the summit at some point where the clay had stopped and the slope below had begun to be steep. The problem before us was to discover by what line it climbed. And the beginning of the climb that would have given us the whole alignment was utterly lost, as I have said, in this mass of modern things, roads, railways, and cuttings, which we found just after Merstham church.

We walked along the road which leads to Rockshaw, and along which certain new villas have been built. We walked slowly, gazing all the time at the fields above us, to the north and the hillside, and searching for an indication of our path.

The first evidence afforded us was weak enough. We saw a line of hedge running up the hill diagonally near the 400-feet contour-line, and climbing slowly in such a direction as would ultimately point to the crest of the Quarry Hangers. Then we noticed the lime works, called on the map 'Greystone Lime Works,' which afforded us a further clue. We determined to make by the first path northward on to the hillside, and see if we could find anything to follow.

Such a path, leading near a cottage down a slight slope and the hill beyond, appeared upon our left when we had covered about three quarters of a mile of road from Merstham. We took it and reached the hedge of which I have spoken. Once there, although no very striking evidence was presented to us, there was enough to make us fairly certain of the way.

A continuous alignment of yew, hedge, and track, appeared behind us, coming straight, as it should do, from Merstham church and right across the old lime pit; before us it continued to climb diagonally the face of the hill. Lost under the plough in more than one large field, it always reappeared in sufficient lengths to be recognised, and gained the crest at last at a point which just missed the end of the clay, and was also just over the beginning of the Quarry Hangers steep.[30]

Once arrived at the summit of Quarry Hangers we found the road to be quite clear: a neat embankment upon the turf; and when, half a mile beyond, we came to the cross-roads and the tower, we had reached a part of the Pilgrim's Way which, though short, had already been settled and did not need to detain us. It corresponds with the modern lane, goes just north of the spur known as Arthur's Seat (a spur upon the southern side of which stands a prehistoric camp), goes up over the summit of Gravelly Hill (where it is the same as a modern road now in the making), and at last strikes Godstone Woods just at the place where a boundary-stone marks the corner of another little patch of land belonging the War Office.

On the further side of this patch of land, which is a kind of isolated cape or shoulder in the hills, runs a very long, deep combe, which may be called Caterham Combe. Up this ran one of the Roman roads from the south, and up this runs to-day the modern road from Eastbourne to London. On the steep side of that precipitous ravine, which is a regular bank of difficult undergrowth (called Upwood Scrubbs), the Old Road was, as we had rightly expected from our previous study of the map, very hopelessly lost.

It is a difficult bit. Had the road followed round the outer side of the hill it would have been much easier to trace, but crossing as it does to the north of the summit, in order to avoid the re-entrant angle of Arthur's Seat, it has disappeared. For the damper soil upon that side, and the absence of a slope into which it could have cut its impression, has destroyed all evidence of the Old Road. One can follow it in the form of a rough lane up to the second of the War Office landmarks. After that it disappears altogether.