Royal Seal of Eldre'Thalas

The Royal Seal of Eldre'Thalas is a class specific trinket which has a +10 bonus to fire resistance, as well as another bonus, which varies by class.

Acquiring a Royal Seal of Eldre'Thalas
In the Dire Maul instance in Feralas all bosses have a chance to drop one of the following books.


 * - The Emerald Dream
 * - The Greatest Race of Hunters
 * - The Arcanist's Cookbook
 * - The Light and How to Swing It
 * - Holy Bologna: What the Light Won't Tell You
 * - Garona: A Study on Stealth and Treachery
 * - Frost Shock and You
 * - Harnessing Shadows
 * - Codex of Defense

The books need to be returned to either (Hunter, Warlock, Paladin),  (Druid, Priest, Shaman), or  (Rogue, Warrior, Mage) in the Athenaeum (Also referred to as the Library) in Dire Maul. The easiest way to get here is by taking the north entrance to Dire Maul, heading down the ramp into the open area then taking the double doors to your left, which lead to the library.
 * Note that you must have Crescent Key from Dire Maul: East to open the double doors, or have an appropriate lockpicking skill (300), or use a Powerful Seaforium Charge or better.

Class bonus
Aside from 10 Fire Resistance, each trinket gives a bonus based on the class the trinket is for.

Extra information
As of patch 1.10 the quests are no longer repeatable.

There is no Death Knight Seal because they were not out when this was released. This is not likely to change.