Required quests
Main dialogue
Ereve is protected by the Shinsoo, so when an evil force enters the island, it's easy to detect that something is wrong. The problem is, we were unable to do so this time around, and that's because the culprit disguised himself as a Knight. He's 9001009 Baroq, the member of the Black Wings. He is responsible for the theft.
The treasure is one of those important items that MUST NOT be in the hands of the Black Mage. 9001009 has yet to escape Ereve, so I need you to join the search as well. Before conducting the search, however, you must first acquire 4032179, so go visit 1101002 and obtain the Investigation Permit.
You MUST locate the 9001009, eliminate it, and bring back the treasure. I, as well as other Knights, will join you in this effort.
Accept
Beware of the fact that 9001009 is always capable of tricking you by pretending to be someone else. The appearances may change, but the inner self won't, so I suggest you keep talking to various Knights until you hear something that doesn't sound like it would come from a Knight. If you do, you can consider that individual 9001009 and attack immediately.