Near Piddington, on the border of the same county, rises to a height of nearly 400 ft. above the village the eminence known as Muswell Hill. Close to the summit of the hill is an earthwork having the form of a square turfed level surrounded by a low bank and bearing the traditional name of "The Wilderness." It is often spoken of locally as a Roman camp, but there is nothing in its structure to suggest such an origin: no satisfactory explanation of its origin or purpose has, in fact, been hitherto forthcoming. Now the word "wilderness," as we shall see in a subsequent chapter, was employed during a certain period to denote a maze of the horticultural type, and it is not improbable that it was used in connection with mazes in general. May we not, therefore, allow it to be within the realms of legitimate surmise that this mysterious work constitutes the remains of a square turf maze, perhaps of a design similar to that of the Clifton maze mentioned above? The situation, the enclosing bank, and the regular outline of the latter accord well with this supposition, though the dimensions--250 ft. square--are rather excessive unless we allow for a considerable margin between the bank and the maze itself. Another Oxfordshire locality, Tadmarton Heath, is mentioned as a turf maze site in a manuscript by the Rev. T. Leman, quoted in a county history published in 1861, but if such a work ever existed there all traces of it have now disappeared; the same is true with regard to another reputed maze site to which reference is made in the manuscript, namely, the Herefordshire Beacon, in the Malvern Hills. In both cases the situations are such as might well have been selected for the purpose, judging by analogy with other known turf maze sites. Sixty years is none too long a period to allow of the complete obliteration of the turf figures, if such existed, in the absence of care and attention, so that it is not surprising if we now find ourselves unable to trace them, especially if they possessed no circumscribing bank or ditch. In Surrey a "Troy-town" was formerly well known in the neighbourhood of Guildford. It was cut in the turf on Hillbury, between Guildford and Farnham. It may be that the earth-rings of which traces are yet visible on St. Martha's Hill, on the other side of Guildford, constitute the remains of a similar work. It is said that the youths and maidens of the town used to congregate here on Good Friday and indulge in boisterous celebrations, the origin of which is not known. Another Surrey spot formerly alluded to as having a turf maze is Putney Heath. Unfortunately, however, we cannot at present point to any authentic traces of a single specimen in the whole of the county.