It seems reasonable that the forces of Destruction hope to gain the upper hand in the war by use of these relics, a goal which must not be allowed to reach fruition. In addition, the presence of strange undead forces points to the awakening of some other power previously outside the realm of reckoning.
The artifacts must be retrieved, and word of these undead brought back at once!
Antiquities Lost III is an Order Quest that is unique to the Beyond the Sands Live Event, and begins in various zones based on the Tier of the character. It plays a key role in the Event's Daily Tasks. There are four instances of the quest, one for each Tier of play.