What with the battering upon the door and the hacking of the red men at their chains the din within the armory was appalling. No sooner was Tardos Mors free than he turned his attention to another of the prisoners, while I set to work to liberate Mors Kajak.

We must work fast if we would have all those fetters cut before the door gave way. Now a panel crashed inward upon the floor, and Mors Kajak sprang to the opening to defend the way until we should have time to release the others.

With javelins snatched from the wall he wrought havoc among the foremost of the Okarians while we battled with the insensate metal that stood between our fellows and freedom.

At length all but one of the prisoners were freed, and then the door fell with a mighty crash before a hastily improvised battering-ram, and the yellow horde was upon us.

“To the upper chambers!” shouted the red man who was still fettered to the floor. “To the upper chambers! There you may defend the tower against all Kadabra. Do not delay because of me, who could pray for no better death than in the service of Tardos Mors and the Prince of Helium.”

But I would have sacrificed the life of every man of us rather than desert a single red man, much less the lion-hearted hero who begged us to leave him.

“Cut his chains,” I cried to two of the red men, “while the balance of us hold off the foe.”

There were ten of us now to do battle with the Okarian guard, and I warrant that that ancient watchtower never looked down upon a more hotly contested battle than took place that day within its own grim walls.

The first inrushing wave of yellow warriors recoiled from the slashing blades of ten of Helium’s veteran fighting men. A dozen Okarian corpses blocked the doorway, but over the gruesome barrier a score more of their fellows dashed, shouting their hoarse and hideous war-cry.

Upon the bloody mound we met them, hand to hand, stabbing where the quarters were too close to cut, thrusting when we could push a foeman to arm’s length; and mingled with the wild cry of the Okarian there rose and fell the glorious words: “For Helium! For Helium!” that for countless ages have spurred on the bravest of the brave to those deeds of valor that have sent the fame of Helium’s heroes broadcast throughout the length and breadth of a world.