Left and right the line of the escarpment stretched into black shadow, streaked with touches of blue and ochre as the rock began to catch the light; the high steppe was behind them, the low desert of erg in front. Sand leaked over the caprock of the basin; the water came from the edge below, where the limestone of the hills rested on granite and the water table was shallow enough for wells and wind-pumps or artesian springs. The air was still, a little chilly from the desert night, with a slight green smell from the fields. Raj raised his binoculars. El Djem was built on a mound of earth two meters high, surrounded by a wall of date palm trunks twice as tall again, bound with ancient iron-hard rawhide and plastered with mud. The minarets of a mosque stood stark and white against the paling stars, one cutting across the yellow circle of Maxiluna. More to the point, so did a heliograph tower built into the stockade . . . and the success of this raid depended on how much damage the two battalions could do before substantial Colonist forces came up.
