slight smile played over Hero Giles' thin lips as he watched the amazed aviator.

"The splendor of our country must indeed astound thee," he observed, "having come from the dreary fastness of the outer Ice World. But come; we are now to pass the great retortii guarding the entrance into the valley."

Nelson's eyes turned again to the weapons that so oddly resembled field guns. He examined them closely, inspecting them narrowly for the differences he knew must exist between them and the artillery that had thundered during the War of the Nations.

The chief difference lay in the mounting of these starkly beautiful weapons. They seemed to be fixed on a movable pivot set into the coal black rock itself. Like modern artillery, these curious pieces of ordnance bore a bronze shield to protect their crews, through which projected the long and very narrow barrels of the guns. Grouped like cannoneers about their piece stood various red-crested Atlantean artillerymen. At a glance Nelson recognized the difference in their equipment from that of the spearmen behind them. These former bore no shields, no swords or bombs, but wore that same kind of leather body-armor which graced the powerful limbs of Hero Giles. Their helmets, too, were different: only the dolphin crest with a tuft of red feathers spouting from it bore any resemblance to those of the infantry, and, moreover, the artillerymen's eyes were shielded by goggles with thick blue lenses.


s the Hero approached, officers among them saluted, then sank on one knee with head humbly bent.

"Rather odd looking guns," commented Nelson. "I'm not much of an artilleryman, but I'm wondering how you take up the recoil?"

The Atlantean's laugh, which always reminded his guest of the purr of a tiger, rang out. "Why, marry, good sir, there is no recoil! These guns do not use that powder which Sir Henry, founder of our line, did speak of. Thou wouldst see one fired?"

His curiosity immeasurably piqued, Nelson nodded, whereupon the Atlantean wheeled about and barked a brief command. With truly Prussian precision, the artillerymen sprang to their posts, some to a series of levers which sprouted from the rock platform without any apparent connection, and some to wheels and gauges of varying size that clustered in bewildering intricacy about the breech of the great brass gun.