Mind Masters (Gamma World Module, No. GW4)

Following a sketchy map, you cross the great river Twainway the day after leaving your settlement. Two days later, in unexplored wilderness, you encounter hostile nomad tribes. After finding traces of a lost expedition, you know you're on the trail of something big. And then you find it, hidden down in a valley, forgotten and untouched since the Devastation. You were searching for a great store of artifacts. Here it is. The whole valley is an artifact! Do you take the news back now, or go in to learn more?