I was in the gorge ruins, working on the soul spear quest. I killed the monster, and looted it with the stash like I do with all things.

 

When I went to complete the spear, the soul stone was no where to be found. It wasn't anywhere in my stash, nor my inventory, nor the corpse. I do remember seeing the soulstone on the corpse before I looted it.

Are you sure you didn't already enchant the spear? When I first did the quest I thought I was crafting a new spear and looked through my inventory for it. When I couldn't find it I tried crafting again but the soulstone was already spent. Then I saw the stats on the spear and realized it was an <a href="http://img3.wikia.nocookie.net/__cb20091211000923/dragonage/images/5/5a/NPC-Sandal.jpg">enchantment</a>!

Got to this point again. I was paying very close attention. I killed Nridek, and when I loot the soulstone with the stash, it disappears. If I loot it with a person, it goes into their inventory correctly.

 

I have a save game sitting in front of the corpse, ready to go, but no idea where to locate my saved games on the computer.

 

In case of windows version, isn't the path like here?

http://forums.obsidian.net/topic/67421-how-to-save-output-logtxt-and-find-saved-games/?p=1512371

 

on linux:

/home/USER/PillarsOfEternity/SavedGames

Found it. Thanks.

LleaRhemen.zip