Heart of the Mantid Swarm

Heart of the Mantid Swarm is an exploration achievement earned for seeking out information behind the mantid.

The four mantid lore idols and their locations are:
 * Cycle of the Mantid between Klaxxi'vess and the biggest clutch in the Clutches of Shek'zeer, Dread Wastes
 * Mantid Society north west of Lake of Stars, Dread Wastes
 * Amber at the back of Amber Vault, Dread Wastes
 * The Empress in Mantid town against the tree on the north side of Heart of Fear, Dread Wastes

Upon interaction with the fourth lore object, adventurers will immediately gain 2000 reputation with the Lorewalkers, and sends a letter via the in-game mail system:

Attached is Heart of the Mantid Swarm (item), which begins a quest, Heart of the Mantid Swarm (quest).

Trivia

 * This achievement's name is likely a reference to Heart of the Swarm, the second expansion of StarCraft II.