You need a key to get to the secret room in The Narrows, but how and where can you get it? Don’t sweat ‘cause we will explain that in more detail in this article.
Secret Room Key Location & Where To Use It Genshin Impact
When you are in the western part of The Narrows next to the abyss by the rocks, go down to the area where the three switches are.
You will first need to hit the three switches during Whitenight. When the switches are in the correct position you will be notified. Then, enter the room and activate the switch inside.
Climb the stairs and follow the direction of the room and take the chest where the Adonis is. Here you will get the key to the secret room.
Then at the location shown in the picture below, get off the edge of the cliff, make your way to the Secret Room, and here use the key in the door in front of you.
This is generally all that you need to do to find and use the key.
After opening the secret room, you will then need to solve The Riddle At The Altar In The Serpent’s Heart where you will have to follow a certain pattern to complete it.