This guide shows how to complete the objective “Use the cage-shaped object to destroy the three remaining Bedrock Keys” in the quest “Surreptitious Seven-Star Seal Sundering” of Genshin impact 2.6.
Look for a way to destroy the three remaining Bedrock Keys (0/3)
To complete this objective, you need to place Geogranum on three different cage-shaped floating objects and then hit these objects to shoot a beam on Bedrock Keys. All three locations are already marked on the map.
Bedrock Keys (1/3)
Head to the first marked location on the south-eastern side as marked on the map below. Here three cage-shaped objects are there and you need to start from the one placed on top of the mountain/cliff and then descend to other structure. It is recommended to use a claymore character to break rocks crystal fast.
#1: On Top of a Mountain near Mechanical Structure
First, break the yellow crystal rock lying on the wooden platform of the mechanical structure to collect Geogranum.
After collecting Geogranum, drop down and glide to land on the wooden lift directly below the wooden structure. Put the Geogranum as the wooden lift reach near the cage-shaped object
After you’ve placed the Geogranum, hit the cage-shaped object to discharge a beam out. You have to aim the beam such that it hits the Bedrock Keys. As the beam hit the Bedrock Keys it lowered down.
#2: Near Mountain Cliff
Similarly, break the yellow crystal rock to collect Geogranum. Use the wooden lift to place Geogranum on the cage-shaped object. Hit the cage-shaped object to discharge a beam out that will hit the Bedrock Keys. As the beam hit the Bedrock Keys it lowered further.
#3: Inside the hut.
Finally, to destroy the Bedrock Keys, drop down to the bottom. Break the yellow crystal rock near a group of enemies miners to collect Geogranum.
Head inside the hut to place Geogranum on the cage-shaped object. Hit the cage-shaped object to discharge a beam out that will hit the Bedrock Keys. This will destroy the first Bedrock Keys
Bedrock Keys (2/3)
To destroy the second Bedrock Keys, you need to place Geogranum on four different cage-shaped objects. All these cage-shaped objects are located at different elevations, so you need to start from the top and keep going down to destroy the Bedrock Keys. The process is the same also. Collect Geogranum from nearby rock crystals and placed it on the cage-shaped object. Hit the cage-shaped object to discharge a beam out that will hit the Bedrock Keys. Refer to the below images for reference.
Bedrock Keys (3/3)
To destroy the second Bedrock Keys, you need to place Geogranum on three different cage-shaped objects. The Bedrock Keys is inside a cave just below the big yellow crystal rock in the area “The Surface”. I have marked the location below on the map. Enter the cave to find Bedrock Keys
The first cage-shaped object is on the left side after you exit the narrow cave passage to reach a bigger area. The process is the same also. Collect Geogranum from nearby rock crystals and placed it on the cage-shaped object. Hit the cage-shaped object to discharge a beam out that will hit the Bedrock Keys. This one will lower the Bedrock Keys first.
The Second cage-shaped object is after the first wooden bridge not very far from the previous one. This one will lower the Bedrock Keys a second time.
The third and last cage-shaped object is at the bottom. Finally, to destroy the Bedrock Keys, you must aim the beam
