My answer is obvious. >.> But oh well...
Mithica. Most of my time on Graal was spent there, and while there is a lot I can say about Mithica, I won't; there is so much nostalgia that probably would do me no good to ramble on about here.
I still talk to Kerin, and some others that I befrended when I used to be staff there. But yes, the endless memories that I have of Mithica are filled with things that I will never find on Graal again.
