Twilight Correspondence

The Twilight Correspondence contains important information for the Earthen Ring regarding the Twilight's Hammer's activities involving the Midsummer Fire Festival outside of Blackfathom Deeps at the Zoram Strand of Ashenvale

Source
Drops from any or  near the Zoram Strand of Ashenvale during the Midsummer Fire Festival.

Twilight Correspondence as a quest objective

 * Unusual Activity