Zone, wait until the next Vana'diel day, then talk to Naja Salaheem.
Choosing "Aphmau" will continue the dialogue.
You have obtained your reward from Lady Karababa, but have been reminded of the burden of your duty. Is the Astral Candescence truly so dangerous? Keep improving your reputation with the palace and dig deeper into the mystery...
SPOILER WARNING: Click here for additional details about this story line.