Meanwhile I looked about, interested to find myself in a new country. The sand and detritus of last night and of Bir el Sheikh had vanished. We were marching up a valley, from two hundred to five hundred yards in width, of shingle and light soil, quite firm, with occasional knolls of shattered green stone cropping out in its midst. There were many thorn trees, some of them woody acacias, thirty feet and more in height, beautifully green, with enough of tamarisk and soft scrub to give the whole a charming, well kept, park-like air, now in the long soft shadows of the early morning. The swept ground was so flat and clean, the pebbles so variegated, their colours so joyously blended that they gave a sense of design to the landscape; and this feeling was strengthened by the straight lines and sharpness of the hills. They rose on each hand regularly, precipices a thousand feet in height, of granite-brown and dark porphyry-coloured rock, with pink stains; and by a strange fortune these glowing hills rested on hundred-foot bases of the cross-grained stone, whose unusual colour suggested a thin growth of moss.