"Man, whenever man has summoned Evil since the youngest days of the world have I not answered? Have I not brought my presence to the magician's lamp? Have I not shadowed the alchemist at his crucible? When the woman called upon me with ancient knowledge, did I not come. I am the guardian of the Barrier. Whoever would pass this way must pass me. Have you the power? Die, then, and begone."

With a long heaving sound of waters in movement, the gray sea stirred from its stillness. As if drawn to some center out of sight, the tide began to recede down that strange beach. Then realization came to me that here was the ocean which, invisible, had surged icy death upon me a while past. The ocean now gathered for the final wave that should overwhelm the defeated.

"Braggart!" my thought answered the taunt. "If the witch-woman was yours, the girl Desire is mine. This I know: as little as man has to do with you, so little have you to do with the human and the good. Living or dead, our path is not yours. I did not summon you. I do dare look upon you, if you have visible form."

Now in the hush a sound that I had faintly heard as a continuing thing seemed to draw nearer. A sound of light, swift footsteps hurrying, hurrying; the steps of one in pitiful eagerness and haste. But I heeded this slightly. My gaze was upon that which took place within the cleft in the great wall. For there the cold darkness was writhing and turning, visible, yet obscure; as the rapids of a glassy, twisting river might look by night. And as one might glimpse beneath the smooth boil and heave of such a river the dim shape of crocodile or water-monster, so in that moving dark there seemed to lie Something from which the mind shrank, appalled. Now gigantic tentacles rolled about a central mass, groping out in unsatisfied greed. Now an ape-like shape seemed to stalk there, rearing up its monstrous stature until all that Breach was choked with it. It fell down into vagueness, where huge coils upraised and sank their loops. But through all change steadily fixed upon me I felt the eyes of the Unseen.

I stood my ground. With what pain and draining cost to my poor endurance there is no need to say. Each instant I anticipated the surge of that returning sea whose flood should smother out the human spark upon its shore. This I had brought upon myself. Yes, and would again to help Desire Michell! If I had sheltered her for one hour——!

The Thing halted, stooped.

"Man, cast off the woman," It snarled at me. "Fool, evil goes with her. For her you suffer. Thrust her from your breast."

I looked down. Wavering against my breast, just above my heart glimmered a spot of light. The little hurrying steps had ceased. I thought, if the bright head of Desire Michell were rested there against me, how I would strive to shield her from sight of the Thing yonder. In the sweep of that will to protect, I drew my coat about the spot of hovering brightness.

I felt her press warm against me. I heard the roar of the death-wave far out in that sea. Before me——

Oh Horror of the Frontier, what broke through the dread Breach. What formed there, more inhuman from Its likeness to humanity? What Hand reached for me—for—us——