stone beneath. After a while red sandstone again cropped out in crazy chimneys, from which the harder layers projected knife-sharp in level shelves beyond the soft, crumbling rock. At last these sandstone ruins became plentiful, in the manner of yesterday, and stood grouped about our road in similar chequered yards of light and shade. Again we marvelled at the sureness with which Auda guided our little party through the mazy rocks.
They passed, and we re-entered volcanic ground. Little pimply craters stood about, often two or three together, and from them spines of high, broken basalt led down like disordered causeways across the barren ridges; but these craters looked old, not sharp and well-kept like those of Ras Gara, near Wadi Ais, but worn and degraded, sometimes nearly to surface level by a great bay broken into their central hollow. The basalt which ran out from them was a coarse bubbled rock, like Syrian dolerite. The sand-laden winds had ground its exposed surfaces to a pitted smoothness like orange-rind, and the sunlight had faded out its blue to a hopeless grey.
Between craters the basalt was strewn in small tetrahedra, with angles rubbed and rounded, stone tight to stone like tesseract upon a bed of pink-yellow mud. The ways worn across such flats by the constant passage of camels were very evident, since the slouching tread had pushed the blocks to each side of the path, and the thin mud of wet weather had run into these hollows and now inlaid them palely against the blue. Less-used roads for hundreds of yards were like narrow ladders across the stone-fields, for the tread of each foot was filled in with clean yellow mud, and ridges or bars of the blue-grey stone remained between each stepping place. After a stretch of such stone-laying would be a field of jet-black basalt cinders, firm as concrete in tie sun-baked mud, and afterwards a valley of soft, black sand, with more crags of weathered sandstone rising from the blackness, or from waves of the wind-blown red and yellow grains of their own decay.
Nothing in the march was normal or reassuring. We felt we were in an ominous land, incapable of life, hostile even to the passing of life, except painfully along such sparse roads as time had laid across its face. We were forced into a single file of weary camels, picking a hesitant way step by step through the boulders for hour after hour. At last Auda pointed ahead to a fifty-foot ridge of large twisted blocks, lying coursed one upon the other as they had writhed and shrunk in their cooling. There was the limit of lava; and he and I rode on together and saw in front of us an open rolling plain (Wadi Aish) of fine scrub and golden sand, with green bushes scattered here and there. It held a very little water in holes which someone had scooped after the rainstorm of three weeks ago. We camped by them and drove our unladen camels out till sunset, to graze for the first adequate time since Abu Raga.
While they were scattered over the land, mounted men appeared on the horizon to the east, making towards the water. They came on too quickly to be honest, and fired at our herdsmen; but the rest of us ran at once upon the scattered reefs and knolls, shooting or shouting. Hearing us so many they drew off as fast as their camels would go; and from the ridge in the dusk we saw them, a bare dozen in all, scampering away towards the line. We were glad to see them avoid us so thoroughly. Auda thought they were a Shammar patrol.
At dawn we saddled up for the short stage to Diraa, the water pools of which Sharraf had told us. The first miles were through the grateful sand and scrub of Wadi Aish, and afterwards we crossed a simple lava flat. Then came a shallow valley, more full of sandstone pillars and mushrooms and pinnacles than anywhere yesterday. It was a mad country, of nine-pins from ten to sixty feet in height. The sand-paths between them were wide enough for one only, and our long column wound blindly through, seldom a dozen of us having common sight at once. This ragged thicket of stone was perhaps a third of a mile in width, and stretched like a red copse to right and left across our path.
Beyond it a graded path over black ledges of rotten stone led us to a plateau strewn with small, loose, blue-black basalt shards. After a while we entered Wadi Diraa and marched down its bed for an hour or more, sometimes over loose grey stone, sometimes along a sandy bottom between low lips of rock. A deserted camp with empty sardine tins gave proof of Newcombe and Hornby. Behind were the limpid pools, and we halted there till afternoon; for we were now quite near the railway, and had to drink our stomachs full and fill our few water-skins, ready for the long dash to Fejr.
In the halt Auda came down to see Farraj and Daud dress my camel with butter for relief against the intolerable itch of mange which had broken out recently on its face. The dry pasturage of the Billi country and the infected ground of Wejh had played havoc with our beasts. In ahl Feisal's stud of riding-camels there was not one healthy; in our little expedition every camel was weakening daily. Nasir was full of anxiety lest many break down in the forced march before us and leave their riders stranded in the desert.
We had no medicines for mange and could do little for it in spite of our need. However, the rubbing and anointing did make my animal more comfortable, and we repeated it as often as Farraj or Daud could find butter in our party. These two boys were giving me great satisfaction. They were brave and cheerful beyond the average of Arab servant-kind. As their aches and pains wore off they showed themselves active, good riders, and willing workmen. I liked their freedom towards myself and admired their instinctive understanding with one another against the demands of the world.
Chapter XLII
By a quarter to four we were in the saddle, going down Wadi Diraa, into steep and high ridges of shifting sand, sometimes with a cap of harsh red rock jutting from them. After a while, three or four of us, in advance of the main body, climbed a sand-peak on hands and knees to spy out the railway. There was no air, and the exercise was more than we required; but our reward was immediate, for the line showed itself quiet and deserted-looking, on a green flat at the mouth of the deep valley down which the rest of the company was marching circumspectly with ready weapons.
We checked the men at the bottom of their narrow sand-fold, whilst we studied the railway. Everything was indeed peaceful and empty, even to the abandoned blockhouse in a rich patch of rank grass and weeds between us and the line. We ran to the edge of the rock-shelf, leaped out from it into the fine dry sand, and rolled down in a magnificent slide till we came to an abrupt and rather bruising halt in the level ground beside the column. We mounted, to hurry our camels out to the grazing, and leaving them there ran over to the railway and shouted the others on.
This unmolested crossing was blessed, for Sharraf had warned us seriously against the enemy patrols of mule-riding infantry and camel corps, reinforced from the entrenched posts by infantry on trolleys mounting machine-guns. Our riding-beasts we chased into the grass to feed for a few minutes, while the heavy camels marched over the valley, the line, and the farther flat, till sheltered in the sand and rock mouths of the country beyond the railway. Meanwhile the Ageyl amused us by fixing gun-cotton or gelatine charges about our crossing-place to as many of the rails as we had time to reach, and when our munching camels had been dragged away into safety on the far side of the line, we began, in proper order, to light the fuses, filling the hollow valley with the echoes of repeated bursts.
Auda had not before known dynamite, and with a child's first pleasure was moved to a rush of hasty poetry on its powerful glory. We cut three telegraph wires, and fastened the free ends to the saddles of six riding-camels of the Howeitat. The astonished team struggled far into the eastern valleys with the growing weight of twanging, tangling wire and the bursting poles dragging after them. At last they could no longer move. So we cut them loose and rode laughing after the caravan.
For five miles we proceeded in the growing dusk, between ridges which seemed to run down like fingers from some knuckle in front of us. At last their rise and fall became too sharp to be crossed with safety by our weak animals in the dark, and we halted. The baggage and the bulk of our riders were still ahead of us, keeping the advantage they had gained while we played with the railway. In the night we could not find them, for the Turks were shouting hard and shooting at shadows from their stations on the line behind us; and we judged it prudent to keep quiet ourselves, not lighting fires nor sending up signals to attract attention.
However, ibn Dgheithir, in charge of the main body, had left a connecting file behind, and so before