The Moonstone Twin (level 50)
DISCLAIMER: Your Steps and Tasks may be different
Characters that were created after Patch Version 1.79 do not receive this Epic quest.
Per live patch first week in Oct:
The Moonstone Twin: Giant Caithor was spawning briefly and then despawning. Players couldn't continue.
This has been fixed, players can attempt this encounter again now.
Kill the far dorochas guarding the steed along the west bank of the river in Cursed Forest and a giant Caithor will spawn. Kill this Caithor and the true Caithor will spawn along with another set of far dorochas (you may need to speak with the steed who pleads for freedom; this may or may not be necessary). Kill the true Caithor and get the moonstone's twin. The steed gives you his unicorn's stony horn when Caithor dies. Return to Brigit and give her the stones. She sends you to Lauralaye near the vaultkeeper who gives you a full set of armor.
Moonspun -- Enchanter
Moonsung -- Bard
Moonglow -- Champion
Moonlit -- Nightshade