Mask of the Mo Zing

Description
The Mask of the Mo Zing is a piece of headgear from the Guild Wars Eye of the North expansion.

Acquisition
You and your party members must complete the quests given by Vael or he will appear as a quest giver near the center of the map.

Trivia

 * Mo Zing means without a master so this could be translated to "Mask of the Masterless". Zenmai fits this description. Also Vael fits this description, as he is a freelance operator, and is not under the command of anyone.