I ran into the Sarnak Revealer on my trip to the Sarnak Fort in Lake of Ill Omen yesterday. He wasn't up the last time I was there though --though possible that someone killed him before I got there LoIO is rather empty nowadays.
This trip I did get him and he dropped the farsight crystal. If I was a druid I would be doing the quest just for the novelty.
Farsight Crystal sells for absolutely nothing to bazaar vendor Sateal Deirosap when offered by level 2 human monk with 143 cha... Current prices in the bazaar range from 1 to 5 plat at this time...
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May your life journeys in Norrath, Azeroth and on Earth be smooth.... be safe... be happy... be well...
It's for one of the few druid quests in the game. You have to collect various items from around Kunark to get the Charm Plant spell. I don't know if it's worth anything to non-druids though.