At this time in history the moaning desert was only five miles in diameter. Its sands at this time had a reddish green hue. The sand looked somehow burnt and mishapen. It was taboo to cross this cursed place and that's why the tribe does it. No invaders are likely to dare cross it after them. Its true. The scouts of the invaders see them cross and they let them go. Assuming they will all perish there. But instead the tribe re settles in the primest land for hundreds of miles. There is almost no need to hunt. Just strike a passing animal dead when it's in arms reach. Trees branches are waited down with fruit. The tribe has never eaten many of these fruits and they have since died out. The tribe triples in size in twelve good years.