Windurst 1-2: The Heart of the Matter
Speak with the gate guards to initate this mission, then head to the Manustery (Windurst Woods, H-9) and speak with Apururu.
You have to go to the other tower, the South-East Horutoto Ruins (East Sarubaruta, J-11). Before you enter downstairs, speak with the taru that is standing there: Pore-Ohre. Then place 6 dark orbs in the Ancient Magical Gizmos so that they can absorb some magical power, and then bring back the magic-filled orbs. There are 4 gizmos in the corners of the ruins and 2 extra behind Cracked Walls.
To make the gizmos stand spark with magical life, you must find the switch which is behind another locked door (you got the key from Pore-Ohre). Now go and collect all 6 orbs, and head outside to watch a cut scene.
Once all is said and done, tell Apururu all you have seen.
Next: Windurst Mission 1-3