Prolonged exposure to extremes of sun and heat can cause madness, even death, yet there is said to exist one group of nomads who roam the desert unceasingly. Its members have never been studied; only one thing is known about them.
Before leaving each campsite they mix quantities of sand with colors extracted from native wildflowers, and spread out a series of vast, intricate patterns. Such creations are obscured by the wind within minutes after the tribesmen ride away.
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