The following account was recorded in the agent's log during your transmission: Gigantic stone millstones are scattered across a flat, arid plain under a bright midday sun, like... half-buried in the dry earth. Uh, air's hot and still, with a smell of parched grass and stone dust. The millstones seem to be slowly, steadily rotating by themselves, their grooved surfaces grinding down the surrounding soil, which somehow gets re-deposited in neat little piles on the opposite side of each stone. A thin layer of clouds hangs motionless in the sky, with no visible wind or air movement to disturb them.