The Shattered Staff

The Shattered Staff is a quest found in the Korlasz Family Tomb in Baldur's Gate: Siege of Dragonspear.
Start the quest by talking to the Restless Spirit in the centre of the lower level.
The bottom half is in the room with beetles (to the north east of the room with 3 colored braziers).
The upper half is in the room with Korlasz. 
Place both halves in the sarcophagus next to the Restless Spirit to complete the quest.
The quest reward is 8 Shandon Gems, 5 Water Opals, 10 Waterstar Gems, and .