Scavengers in Old Ascalon

Overview
Quest Summary:
 * 1) Go to the ruins in Old Ascalon. Clear out any scavengers.
 * 2) Return to Warmaster Tydus for your reward.

Obtained from:
 * Warmaster Tydus in Ascalon City

Requirements:
 * Defend the Wall
 * The Great Northern Wall

Reward:
 * 500 XP
 * Battle Axe of Fortitude
 * Damage 6-16 (req. 3 Axe Mastery)
 * Health +25
 * Damage +15% (vs. Charr)

Dialogue:
 * I'm getting reports of scavengers in the ruins of the army citadel in Old Ascalon. I sympathize with the poor, but anything left in those ruins is the property of the King's Army. I need you to investigate and clear out any scavengers.

Walkthrough
Southwest of Grazden the Protector near Sardelac Sanitarium you'll find a NPC named Thaddiel amongst the ruins. Talk to him and convince him to stop scavenging. Return to Warmaster Tydus for your reward.

Talking to Thaddiel is a bit of a logic puzzle. There are several paths through the conversation, most of which accomplish nothing or loop around. The proper sequence to get him to leave is "What are you doing here?", "I have orders to clear the area of Scavengers", and "Only if you make yourself useful."