Tips, tricks & notes:

• You can drop the Ghostpeak amulet after this quest, then get another one anytime from Father Urhney if needed for later member quests. It is also possible to take your Ghostspeak amulet with you to Father Urhney, drop it, talk to him to get another, and then pick them both up to have 2 amulets. If desired, you can continue to drop, get another and pick them all up at the end to have even more extras.
• If you did not receive any Ancient bones the first time, you can talk to Father Aereck to receive 5. These cannot be used on an altar in a PoH or the Ectofuntus.