• Scorched Stone
• Item Level 20Disenchants into:
  Not disenchantable
• Binds when picked up
• Unique
• Use: Teaches you how to summon this companion.

Source

This item has a chance to be found within  [Zen'Vorka's Cache], purchasable from Zen'Vorka within the Molten Front for 30 x  [Marks of the World Tree]. It is only available after players have completed Filling the Moonwell, Additional Armaments, and Calling the Ancients.

Prior to the Firelands Invasion and prior to being removed with Patch 3.3.3, this item could be found inside the Ice Chest after defeating Lord Ahune in the Slave Pens during the Midsummer Fire Festival.

Patch changes

• Patch 4.2.0 (28-Jun-2011): Added back in to the game. 
  
• Patch 3.3.3 (2010-03-23): (Undocumented) This item no longer drops from Ahune. 
  
• Patch 2.4.0 (25-Mar-2008): Added. 
  

External links

• Battle.net (EU)
• Wowhead
• Thottbot
• WoWDB