the mention of Ar-hap's name, appealed to the old fellow; and after a grunt or two about "losing a tide" just when spoil was so abundant, he accepted the bargain, shouldered his belongings, and led me towards the far corner of the beach.
It looked as if we were walking right against the towering ice wall, but when we were within a yard or two of it a narrow cleft, only eighteen inches wide, and wonderfully masked by an ice column, showed to the left, and into this we squeezed ourselves, the entrance by which we had come appearing to close up instantly we had gone a pace or two, so perfectly did the ice walls match each other.
It was the most uncanny thoroughfare conceivable—a sheer, sharp crack in the blue ice cliffs extending from where the sunlight shone in a dazzling golden band five hundred feet overhead to where bottom was touched in blue obscurity of the ice-foot. It was so narrow we had to travel sideways for the most part, a fact which brought my face close against the clear blue glass walls, and enabled me from time to time to see, far back in those translucent depths, more and more and evermore frozen Martians waiting in stony silence for their release.
But the fact of facts was that slowly the floor of the cleft trended upwards, whilst the sky strip appeared to come downwards to meet it. A mile,
