A single focus stone held by the water mages is not enough to shatter the Dome. Saturas still needs four more, which are scattered across the darkest parts of the colony, and the search for the next one leads straight into the Stone Circle near Orc territory.
For generations, the Stone Circle has been a magnet for dark magic, and whoever entered those chambers never returned. The surroundings are heavily guarded by bloodhounds, snappers, and biters. But you are not alone in this journey to claim the focus stone; you will be accompanied by Diego
How to get to the Location
X marks the spot for the Stone Circle, as shown in the image below

How to get the focus stone
Now that you are at the location, meet with Diego to start the quest, and he will ask you to light up the wall painting torches to open the underground Stone Circle entrance, as shown in the image below.

Once the path is open, descend into the stone structure to reach the first chamber, before heading straight into the tunnel to the next chamber. Make sure to look closely at the upper section of the wall to your left and right sides, where a blue glowing magical seal is located.
We need to hit them with the arrows to break the seal.
Note: These seals unlock different functionalities in the chambers; here, they open the chamber doors to your right and left. As shown in the image below.


Loot those chambers and get to the next chamber.
Now that you are in the main chamber, there are three magical blue seals in three different directions to the wall at the very top.
Note: Here, the blue magical seals are used to discharge a huge amount of energy beams to the ground.
As shown in the image below.


And we have a zombie that is immune to physical damage and magical damage from us.
The only way to kill the zombie and to take the focus stone is to hit seals and discharge the focus stone energy onto the zombie, as shown below.

We need to hit all three tabs one after another to discharge the stone. When it discharges, lure the zombie into the center of the room so that it stands directly within the blast zone, and we need to do that three times in a row to kill the zombie. Use the ranged weapons to break the seals.
