0 Talk A Stack of Letters Edit History A Stack of LettersQuest ItemUniqueItem Level 1Disenchants into:Not disenchantable Source Edit This item is provided for [2] Coldridge Valley Mail Delivery. External links Edit Battle.net (EU) Wowhead Thottbot DB MMO-Champion Read more This item drops from Mo'arg Master Planner in Nagrand. This item is provided for . This item is... The Master Planner's Blueprints This item drops from Mekgineer Thermaplugg in Gnomeregan. Allows you to open Thermaplugg's Safe.... Thermaplugg's Safe Combination This item drops from Greater Thunderhawk in The Barrens. This item is an objective of . Thunderhawk Saliva Gland Related Categories Category: World of Warcraft common quest items