C767 Copper coin

The thing that was emitting the white light was just below and to the left of my body. Although the light was very clear, my intuition told me that the thing was still quite a distance away from me.

For now, it looked to me like a palm-sized object, even a few circles smaller than a palm. It was rectangular, and it looked like it was a bit of a wink.

"What the heck is this …" As I swam down