When you start this quest, a Banisher Priest will be assigned to help protect you. Follow you compass quest indicator to the hideout. Enter the back of the Kojani Embassy (Embassy of Shenso Ni). The entrance to the hideout can be identified by the cart and the barrels to the left of the entrance. There will be several Mythos Cultists (Level 1, Human, Kojani, 1 Dot, Aggro) guarding the stairwell. Each kill is -100 Mythos Cultist Faction. /loc -38763, 26177, 36496 in Lamplighter's District. Return to Ashlyn for your rewards.