Odonis Arkim

House Phiarlan Enclave
If you try to talk to him before talking to Avanti Moonwillow, he will reply:
 * Odonis Arkim: Did Priestess Moonwillow send you?
 * Odonis Arkim: No? I require her permission before I am able to help you.
 * Odonis Arkim: She can be found in the Golden Wing.

If you talk to him after acquiring the quest The Faithful Departed, however, he will reply:
 * Odonis Arkim: I assume Priestess Moonwillow told you everything you need to know about the Temple of the Ancients.
 * Odonis Arkim: Let me know when you are ready to depart for the Shrouded Vale.
 * You: I'm ready to leave.