According to the scenario, several decades have passed on the map, so the map will never be identical to the terrain, as time has changed something. This needs to be considered. If there is a stone, you should look for it first, but a tree or bush might not have existed at all back then.
I "got stuck" (i.e., couldn't pass it for a long time :o) in this mission and only completed it today. You just shouldn't stay in your dungeon for too long, because the orange player was accumulating an army and easily killed Railag. I left on the second week and easily destroyed everyone :cool:. After visiting all the obelisks, I easily found the Tear of Ashi :smile44:.