Much of World of Warcraft play involves "questing". These wow gold quests, also called "tasks" or "missions", are usually available from non-player characters (NPCs).[28] Quests usually reward cheap wow goldthe player with experience points, items, and/or in-game money. It is also through quests that much of the game's story is told, both through the quest text and through scripted NPC cheap wow gold actions.[29] Quests are linked by a common theme, with the next quest triggered by the completion of the previous, forming a quest chain. Quests commonly involve killing a number of creatures, gathering a certain number of resources, finding a difficult to locate object, speaking to various NPCs, visiting specific locations, interacting with objects in the world, or delivering an item from one place to another.