Suddenly a raised dagger gleamed in the upflung hand of the black. Down it drove toward the white face of the Father of Therns. With a loud shriek of fear the Holy Hekkador grasped frantically at that menacing arm.

I was almost to the trailing rope by now. The craft was still rising slowly, the while it drifted from me. Then I stumbled on the icy way, striking my head upon a rock as I fell sprawling but an arm’s length from the rope, the end of which was now just leaving the ground.

With the blow upon my head came unconsciousness.

It could not have been more than a few seconds that I lay senseless there upon the northern ice, while all that was dearest to me drifted farther from my reach in the clutches of that black fiend, for when I opened my eyes Thurid and Matai Shang yet battled at the ladder’s top, and the flier drifted but a hundred yards farther to the south—but the end of the trailing rope was now a good thirty feet above the ground.

Goaded to madness by the cruel misfortune that had tripped me when success was almost within my grasp, I tore frantically across the intervening space, and just beneath the rope’s dangling end I put my earthly muscles to the supreme test.

With a mighty, catlike bound I sprang upward toward that slender strand—the only avenue which yet remained that could carry me to my vanishing love.

A foot above its lowest end my fingers closed. Tightly as I clung I felt the rope slipping, slipping through my grasp. I tried to raise my free hand to take a second hold above my first, but the change of position that resulted caused me to slip more rapidly toward the end of the rope.

Slowly I felt the tantalizing thing escaping me. In a moment all that I had gained would be lost—then my fingers reached a knot at the very end of the rope and slipped no more.

With a prayer of gratitude upon my lips I scrambled upward toward the boat’s deck. I could not see Thurid and Matai Shang now, but I heard the sounds of conflict and thus knew that they still fought—the thern for his life and the black for the increased buoyancy that relief from the weight of even a single body would give the craft.

Should Matai Shang die before I reached the deck my chances of ever reaching it would be slender indeed, for the black dator need but cut the rope above me to be freed from me forever, for the vessel had drifted across the brink of a chasm into whose yawning depths my body would drop to be crushed to a shapeless pulp should Thurid reach the rope now.