Search under quests
Duel

Use the Summon Scroll next to Agamemnon in the Sea of Atlantis. Defeat him and then speak with him.
 

Show Quest Info

Introduction

Agamemnon admits that it was he who ordered his follower to steal the Laws of the Emerald. Not only did he seek the book for knowledge, but also to know what makes Atlantis so powerful and united. His intention might be positive but he must pay for his crime.

NPC Dialog

When I met you, I knew you possessed supreme combat skills. Now you know that I stole the book. I won't trouble you any longer... duel me. If I lose, then so be it. I will embrace my punishment.

Quest Completion

I didn't expect you to be so powerful! Go report to Turu and tell him that I will confess to his chief.