This guide shows how to complete “The Trail of Drake and Serpent” sub-quest in the Enkanomiya Region in Genshin impact 2.4. This subquest appears in The Subterranean Trials of Drake and Serpent World Quest. Aru will ask you to retrieve three fragments of Reins of Revival, which would then be stitched together with the Golden Bridle. You can obtain one of the fragments in this subquest.
Go to Evernight Temple
As the subquest start, you will need to head to Evernight Temple and follow the trail of the Bathysmal Vishaps. Glide to the location marked on the map. You will find the entrance along the cliff wall.
Follow the trial of Bathysmal Vishaps and search for the secret room (0/3)
After reaching the Bathysmal Vishaps which is a cave-like ruin, walk along the trail and interact with three investigate spots. These locations are marked on the map.
Go to the secret room
After interacting with all three Investigate spots the game will prompt you to enter the secret room by activating a nearby mechanism.
Defeat all opponents
Eliminate all three Rockfond Rifthound Whelp to activate the cube mechanism. Interact with the cube mechanism to open the secret room.
Activate the mechanism and open the gate to the secret room
Inside the secret room, you will find a mechanism puzzle. There are two mechanical levers attached to two different pillars and one in the middle that can be activated with the normal strike. You will also find an ‘of sun and moon‘ mechanism in the secret room at one corner. Refer to the below image. Interact with them in mechanism in this order:
Step 1: Interact with “of sun and moon” inside the secret room to set to Whitenight.
Step 2: Interact with the central mechanism. This should force the stone wall to slide.
Step 3: Interact with the mechanism on the left, to drop the iron grilled door.
Step 4: Interact with the central mechanism to slide the stone wall.
Step 5: Interact with the mechanism on the right, to open the iron grilled door.
Step 6: Interact with the central mechanism to slide the stone wall.
Step 7: Interact with the mechanism on the right, to open the iron grilled door.
Defeat all opponents
After the puzzle is solved path is opened, you can head deeper into the secret room. Defeat the Rifthounds to unlock the Chest and obtain the Quest Item Reins of Revival Fragment (Temple).
