During their conversation they had drawn neat the base of the hills, which sloped gently, and were not above fifty feet in height. Maskull now began to see strange specimens of vegetable life. What looked like a small patch of purple grass, above five feet square, was moving across the sand in their direction. When it came near enough he perceived that it was not grass; there were no blades, but only purple roots. The roots were revolving, for each small plant in the whole patch, like the spokes of a rimless wheel. They were alternately plunged in the sand, and withdrawn from it, and by this means the plant proceeded forward. Some uncanny, semi - intelligent instinct was keeping all the plants together, moving at one pace, in one direction, like a flock of migrating birds in flight.

Another remarkable plant was a large, feathery ball, resembling a dandelion fruit, which they encountered sailing through the air. Joiwind caught it with an exceedingly graceful movement of her arm, and showed it to Maskull. It had roots and presumably lived in the air and fed on the chemical constituents of the atmosphere. But what was peculiar about it was its colour. It was an entirely new colour - not a new shade or combination, but a new primary colour, as vivid as blue, red, or yellow, but quite different. When he inquired, she told him that it was known as "ulfire." Presently he met with a second new colour. This she designated "jale." The sense impressions caused in Maskull by these two additional primary colors can only be vaguely hinted at by analogy. Just as blue is delicate and mysterious, yellow clear and unsubtle, and red sanguine and passionate, so he felt ulfire to be wild and painful, and jale dreamlike, feverish, and voluptuous.

The hills were composed of a rich, dark mould. Small trees, of weird shapes, all differing from each other, but all purple - coloured, covered the slopes and top. Maskull and Joiwind climbed up and through. Some hard fruit, bright blue in colour, of the size of a large apple, and shaped like an egg, was lying in profusion underneath the trees.

"Is the fruit here poisonous, or why don't you eat it?" asked Maskull.

She looked at him tranquilly. "We don't eat living things. The thought is horrible to us."

"I have nothing to say against that, theoretically. But do you really sustain your bodies on water?"

"Supposing you could find nothing else to live on, Maskull - would you eat other men?"

"Neither will we eat plants and animals, which are our fellow creatures. So nothing is left to us but water, and as one can really live on anything, water does very well."

(Editor：way)