
For once, the pebble is not inside a cave.
This Ordinary Pebble is found at [17.2, 6.5] on a rock at the entrance to a cave on the northern side of Western Watch in Drustvar. It is part of the Riddle of Baa'l. Zoom all the way in - the pebble is on top of one of the larger rocks, covered up by the brush.
Solution[]
... Next pebble is found in cave in Tiragarde Sound [75, 70]
Patch changes[]
Patch 8.0.1 (2018-07-17): Added.