XII
THE HEDGE OF ARROWS

For the first few days following upon his arrival in the city, Constans kept under rover, venturing forth only after nightfall. He wanted to make sure of all his bearings before taking any long step in advance, and the extent and strength of the enemy's defences particularly interested him. Fortunately for his purpose the weather was growing colder every day, autumn having given place to winter much earlier than usual, and on these chilly nights the Doomsmen were not inclined to wander far abroad. By keeping closely to the side streets he ran but little risk of discovery through a chance encounter; at the same time he must get inside the danger zone if he hoped to obtain any information of value.

Constans found the solution of his problem by betaking himself to the house-tops. Through the aid of a rope, furnished with cross-pieces inserted in the strands at regular intervals and a grappling-hook at the free end, he could pass easily from roof to roof of contiguous buildings, and so gain points of observation that otherwise he would never have dared to approach.

One of these aërial routes led from the side avenue on the east to a moderate-sized building situated on the Citadel Square and directly overlooking the fortress. Twice now he had ventured to spend the whole of a day lying perdue in this convenient eyrie, his binoculars in constant use, and what he saw and learned increased his thoughtfulness, although he would not let it shake his resolution.

So far as he could judge, the Doomsmen could not be regarded as formidable through mere weight of numbers. Their available fighting force Constans estimated at two hundred, which would indicate a total population of a round thousand. Now Croye alone was a city of full fifteen hundred inhabitants, and the census of the West Inch should show twice that number. In an open field, and man to man, the House-dwellers were much more than a match for Dom Gillian's wolves.

On the other hand, the Doomsmen were all trained warriors, and to smoke them out of their own nest—one would have to think twice about that. Here was a half-ruined city, several square miles in actual area, and surrounded by unfordable tidal rivers. Deep at its heart was the citadel, strongly built and abundantly supplied with water and provisions. Under these circumstances it was a simple matter for a small force to maintain itself indefinitely; it would necessitate the employment of an attacking army four or five times as large as the defence to even up the chances. This, of course, on the presumption that both sides were armed alike. Constans's thoughts reverted to the fire artillery of the ancients; with that at his disposal he would hold the balance of power. The possession of a single score of rifles should enable him to demonstrate the feasibility of the attempt to his sluggard kinsmen, the Stockaders, and to the even more reluctant townsmen. He determined to take the first opportunity to make a careful search of the city armories and ammunition depots; in the mean time, it was his business to acquaint himself as thoroughly as possible with the material situation.

The stronghold of the Doomsmen occupied the middle section of the ancient city square. In shape it was an irregular oblong, the original builders being apparently content to enclose sufficient space without reference to architectural symmetry. Its perimeter might be roughly estimated at eight hundred yards, respectable proportions, and indicating a capacity to comfortably accommodate the whole population of Doom should the necessity arise.

The barricade was constructed of stone, principally paving-blocks torn up from the adjoining streets, and since the material was unlimited in quantity the walls were of massive proportions, sixteen feet in height and nearly six feet in thickness at the bottom course. At the several corners stood towers elevated some ten feet above the wall veil and properly loop-holed. Under the east and south walls and virtually built into them were a series of huts, which served as storehouses and for living quarters in time of siege. At present these huts—low, uncomfortable-looking structures of stone and roofed with broad, flat flags—were untenanted save for the two or three used by the small garrison on duty. The western side of the enclosure was occupied almost entirely by storehouses for grain and other provisions; here, too, were pens for cattle on the hoof and immense cisterns for the storage of drinking-water. Somewhat to the south of the centre of the square stood what appeared to be the administration building, a round, tower-like structure, three stories in height and with enormously thick walls. One could fancy it the scene of a last stand in a lost cause.

Directly opposite, in the north wall, was the gateway. It opened on to the Palace Road, one of the principal avenues of the ancient city, and was in the form of a vaulted passageway defended by flanking towers and superimposed battlements. A notable stronghold was this citadel of the Doomsmen, wisely planned and well built, and Constans could hardly fall into the error of under-estimating its resources. For all that, he would not acknowledge that it was impregnable; stone walls cannot stand forever against stout hearts.

Day by day went on and Constans kept adding steadily to his stock of information. Most important of all, he had succeeded in definitely locating the several positions of the enemy. It appeared that the district actually inhabited by the Doomsmen included only the fortified square and a few of the city blocks contiguous to it on the north. The distance from the citadel to the library building and Dom Gillian's house was about a mile, and it was some five miles further to the tidal estuary which formed the northern boundary of the city proper. Of the various structures that had formerly spanned the stream, but one, the High Bridge, remained. Built of massive masonry, it had wonderfully resisted the disintegrating processes of time, and stood to-day, immovable as the granite hills of which it formed the connecting link. Being the sole means of landward approach to Doom, it was guarded carefully, and a detail from the general garrison was at all times on duty there.