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A city such as Ar, properly commanded, might withstand a siege for a generation.
Beyond the walls were Pa-Kur's lines of investment, set forth with all the skill of Gor's most experienced siege engineers. Some hundreds of yards from the wall, just beyond crossbow range, a gigantic ditch was being dug by thousands of siege slaves and prisoners. When completed, it would be fifty or sixty feet wide, and seventy, or eighty feet deep. In back of the ditch slaves were piling up the earth which had been removed from the ditch, packing and hardening it into a rampart. On the summit of the rampart, where it was completed, were numerous archer blinds, movable wooden screens to shield archers and light missile equipment.
Between the ditch and the walls of the city, under the cover of darkness, thousands of sharpened stakes had been set, inclined toward the walls. I knew that the worst of such devices would be invisible. Indeed, several of the spaces between the stakes were probably occupied by covered pits, more sharpened stakes being fixed in the bottom. Also, half buried in the sands among the stakes and set in wooden blocks would be iron hooks, much like those used in ancient times on Earth and sometimes called spurs. Behind the great ditch, separated from it by some hundred yards, there was a smaller ditch, perhaps twenty feet wide and twenty feet deep, also with a rampart formed from the excavated earth. Surmounting this rampart was a palisade of logs, sharpened at the tips. In the walls, every hundred yards or so, was a log gate. Behind this wall were the innumerable tents of Pa-Kur's horde.
Here and there among the tents siege towers were being constructed. Nine towers were in evidence. It was unthinkable that they should top the walls of Ar, but with their battering rams they would attempt to break through at the lower levels. Tarasmen would make the attack at the summit of the walls. When it came time for Pa-Kur to attack, bridges would be constructed over the ditches. Over these bridges the siege towers would be rolled to the walls of Ar; over them his tharlarion cavalry would march; over them his horde would flow. Light engines, mostly catapults and ballistae, would be transported over the ditches by harnessed tarn teams.
One aspect of the siege which I knew would exist but which I obviously could not witness would be the sensitive duel of mine and countermine which must be taking place between the camp of Pa-Kur and the city of Ar. There would be numerous tunnels being worked even now toward the walls of Ar, and, from Ar; counter tunnels to meet them.
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