The Moonstone Twin (level 43)
DISCLAIMER: Your Steps and Tasks may be different
Characters that were created after Patch Version 1.79 do not receive this Epic quest.
Talk to your trainer in TNN who sends you to Brigit in the palace. She refers you to Robena the harper who is in a building south of the palace (loc=22745,21416).
Then you need to speak to Seren, in Tir na Nog near the dye merchants, who tells you to find the faerie court in Cursed Forest.
The faerie court (night-dawn only?) apparently has random spawn points, but was found at approximately 50k/53k (found 4:30am at loc=34k,50k). Court consists of red con'd (to a lvl 47) jesters and advisors.
After you kill them (Adviser, Maidens, Jester) and receive the first half-moonstone, return it to Brigit in TNN for your reward.