Take the Empty Canteen to the Moon Well in the center of Jaedenar and fill it before returning to Greta Mosshoof in Felwood.
Deep within Jaedenar lies Shadow Hold--the main fortress of their corruption and evil.
The Shadow Council has protective spells surrounding their lair in the form of braziers. If I am to find out any more information about our enemy through scrying, then those braziers must be extinguished. By doing so, I should be able to spy on the Council and find out who leads them.
If you can, take this canteen and fill it at the Moon Well in the center of Jaedenar. Return to me afterwards.