From publisher blurb:
Then, through good fortune as we stopped for a brief rest, I noted a piece of ruins, with markings like those that first walked this
land. Exploration closer toward the Shallow Sea revealed a concealed cave, which had a strange wall with a hexagonal shape,
perhaps 10 foot across, carved into it. A much smaller hexagon, misaligned from the larger one, was carved into the center and there was writing just below it.