The Brownie Grotto in DLW on Tarinax server is not there. I logged out and back in, still not there. I logged out and validated game assets, logged back in, still not there. Yesterday I harvested 350 of each mat in Brownie Grotto so I could use a crafting potion to level up my crafter in there today. Needless to say, I am extremely unhappy about its disappearance. I hope after you get it back we get an extra day of Moonlight Enchantments this month.
Nek and EL grottos are also absent on Tarinax, so I will assume the Antonica one disappeared as well.
Update: I logged in another toon that was camped in the grotto, and she is in the grotto -- but the crafting quest giver is not there.
Those darn fay. It should be back now, and it should remain a while longer than usual on Tarinax, as well. ~ Kaitheel