Description
Ancient Ethians guarded their treasures in various ways. I've found one embedded in stone, but to get it, I need to create an acid that eats through rock. The Planar Oozes contained in the Nethers in Harlan's Lament will provide a good basis for the acid.
Upon completion
You have the Planar Oozes - good, good. I just need to blend it with tar to give it the right consistency and to aid in the reaction.