Kill the Ophidan Worshippers gathering in the Danuar Ruins.
Step 1. Drive out the Devoted Dragonbound DefendersParticulary fanatical Dragonbound who will stop at nothing to defend the Hideout. They include Zealous Guardian Warriors, Zealous Spys, Zealous Sorcerers, Zealous Healers, Zealous Combat Priests, Zealous Patrollers, and Zealous Summoners. (x10).
Step 2. Talk with PerianderA captain of the Guardian Detachment who appears when the Elyos capture Soaring Archways Rampart..