Ruins of the Tomb of the Primeval Kings
The "Ruins of the Tomb of the Primeval Kings" is a self-explanatory fan-made name for the Tomb of the Primeval Kings and the four explorable areas that create a path to the Hall of Heroes after they have become corrupted by the demonic servants of Abaddon, Menzies, and Dhuum. After the corruption, large tendrils destroyed the tombs and a "Chaos Rift" appeared as the new, corrupted, entrance to the Rift.
 Getting there
The ruins can be reached by approaching the "Chaos Rift" in the Tomb of the Primeval Kings outpost, which can be reached from the Dragon's Lair outpost in the Crystal Desert. Accordingly, only characters who have completed Augury Rock can reach ToPK.