Gray walked a few meters forward, looking for something—and found it behind a nearby mass of feathery purple vegetation. As he pushed the plants aside, he revealed one of Heimdall’s cliff faces, just a meter and a half tall, polished and smoothed into a gleaming wall of silver, with what appeared to be circuitry diagrams imprinted in the metallic face. In his era, this cliff was much higher, heavily eroded, and looked like nothing more dramatic than a shelf of exposed rock with odd patterns of metallic stains, only just recognizable as the product of technology. But this . . . He reached out
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