Subterranean Secrets is a story quest in Diablo 4: Lord of Hatred which takes place deep beneath the city of Temis into the dangerous Temis Sewers. During this quest, you will continue chasing the mysterious Hand of Akarat while fighting through swarms of vermin, powerful enemies, and spirits hiding underground. As you explore the dark tunnels and catacombs, you will eventually uncover a strange ritual that leads to a major boss fight. This guide will show you how to complete the Subterranean Secrets quest in Diablo 4: Lord of Hatred.
Subterranean Secrets Quest


Subterranean Secrets is one of the main storyline quests in Diablo 4. The quest starts at the Temis Promenade located in the Skovos zone. The quest will begin once you get to the entrance to the Temis Sewers on your pursuit of the shady Hand of Akarat while completing the Between Heaven and Hell storyline quest.

When you find yourself at the entrance to the Temis Sewers, enter there, take the winding path towards the northeast, and fight some vermin enemies. Later, you will meet the Vermin Monarch. Defeat him in order to move further into the sewers. After taking it down, keep moving forward and deal with the groups of Rat King enemies blocking the path.
Finding Hand Of Akarat

Go to the sewers until you reach the Sunken Catacombs. Here, you will start meeting Vengeful Spirits. Make your way through the zone and take the meandering northern path with the spirits and enter the Hall of Solitude.
Talk to the Hand of Akarat inside the hall and witness the transformation ritual of the enemies into Galvanised Mauler. Kill the enemy and proceed eastward through the hall to reach the Plaza of Queens.
As soon as you leave the Temis Sewers, the Subterranean Secrets quest will be completed. You will be rewarded with gold and experience points, and the next main quest, The Queen and the Saint, will begin right away.
