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A PRINCESS OF MARS from the altitude at which I was flying.

Believing that I had come too far to the north and west, I turned back in a southeasterly direction, passing during the forenoon several other large cities, but none resembling the description which Kantos Kan had given me of Helium. In addition to the twin-city formation of Helium, another distinguishing feature is the two immense towers, one of vivid scarlet rising nearly a mile into the air from the center of one of the cities, while the other, of bright yellow and of the same height, marks her sister. [280]