The Princess' Box, combined with the Priest and Scribe Boxes, allows Genshin Impact players to open the Secret Room's gates in the Starlit Cavern. 

In this guide, we will tell you how and where to find all the boxes and open the secret door in Genshin Impact. Let's go!

How to Obtain the Princess' Box in Genshin

As always, while exploring the icy region of Dragonspine, make sure you are well equipped with warmers and plenty of Goulash dishes (if you have completed the "In the Mountains" quest). Learn more about how to stay warm in this region here.

The Princess' Box can be found on a small island to the east of the Frostbearing Tree, inside the Luxurious Chest. Teleport to the nearest Waypoint (just above the Eternal Frost Tree) and head towards the designated location. First, you will need to go through the Time Trial, which involves defeating two Cryo Abyss Mages and one Hydro Abyss Mage within 60 seconds - so bring your strongest Pyro and Electro characters with you!

How to Obtain the Priest Box in Genshin

This box is located on top of the tower to the northwest, slightly left of the road above the Submerged City - the Ancient Palace. 

How to Obtain the Scribe Box in Genshin

Teleport to the Starlit Cavern, descend to the lower level, and look for the Stone Monument slightly northwest. You will need to place three Cecilia flowers here (you can gather them in the wild or buy them from Flora in Mondstadt). After that, a Luxurious Chest will appear, containing the Scribe Box.

How to Open the Secret Door in Genshin

Now that you have all three boxes, you can open the gates of the Secret Room. 

Head into the depths of the Starlit Cavern, but this time you need to go upstairs to find the Secret Room. You will come across a ledge that leads to the side and will guide you to the gates.

Behind the secret gates, you will find a Luxurious Chest, Precious Chest, Exquisite Chest, as well as Scarlet Agate and other rewards.