Page:The Chessmen of Mars.djvu/221

 chambers of the city of Manator, and upward through walls to rooms above the ground. He found many ingeniously devised traps, and he found poisoned food and other signs of the constant battle that the inhabitants of Manator waged against these repulsive creatures that dwelt beneath their homes and public buildings.

His exploration revealed not only the vast proportions of the network of runways that apparently traversed every portion of the city, but the great antiquity of the majority of them. Tons upon tons of dirt must have been removed, and for a long time he wondered where it had been deposited, until in following downward a tunnel of great size and length he sensed before him the thunderous rush of subterranean waters, and presently came to the bank of a great, underground river, tumbling onward, no doubt, the length of a world to the buried sea of Omean. Into this torrential sewer had unthinkable generations of ulsios pushed their few handsful of dirt in the excavating of their vast labyrinth.

For only a moment did Ghek tarry by the river, for his seemingly aimless wanderings were in reality prompted by a definite purpose, and this he pursued with vigor and singleness of design. He followed such runways as appeared to terminate in the pits or other chambers of the inhabitants of the city, and these he explored, usually from the