To find this mob in-game, use BACKSPACE to open the World Search window, then enter Norcissus Lyne in the Search field and click "Search". Remember, the field is case-sensitive and must be entered exactly as shown.
This mob is a member of the group collectively known as Black Codex.
Adventurer, I'm seeking a few old things that are commonly referred to as "ancient mementos" ×normal. If you were to find some and turn them over to Black Codex staff, then perhaps you would be in line for a generous reward.
With all 3 pieces of matching jewelry (the Rings are dropped by Bosses in Warnorken Arena or purchased from Isaac Haden [Black Codex] standing before Dungeon of Dalanis) you will receive a set bonus.