You see a book. It is bound with sack cloth, and the pages threaten to come loose as you open them. The book is filled with ramblings of a local scientist, but there is no clear identification. Whoever wrote this left no name. They fixated upon a disk with many inscriptions and began to observe the local geology in detail. There are paranoid ramblings about regular rocks, and soon they fixate on black smooth stones and monoliths. They begin to make absurd claims, suggesting they are living beings, with sketches drawing great geometric stones with flesh-like tendrils swinging behind them. The final entry, several circles drawn around the sketch as though to deeply, deeply emphasise how important the sketch was is only this: THIS IS HOW YOU DEFEAT THEM. THIS WILL BE OUR SALVATION! COG BLESS US ALL.
Those are obviously just Perfectly Normal floating stones, gathering in a small group in preparation to be mined. Just stones. Nothing to see here.