I was just doing this quest in the Qeynos sewers. As the quest giver was speaking to me I was being attacked by the other NPCs, so I fought back. Now they're all dead, the quest giver ran away, and I get a message that "the encounter will no longer give encounter awards." My journal says to read the manifest and speak to Fippy but I don't have the manifest and he left. Any idea what I should do next?