Table of Contents
Part 1: Unknown Star
After finishing Unknown Star quest, you unlock access to the event shop where you can spend Fading Star’s Might to buy Characters development Fragment crystals, Experience books, and Mora.
You can collect Fading Star’s Might in 3 regions, Mondstadt, Guyun, and Qingce.
Even if the rewards need only 7 per region, you can collect 22 Fading Star’s Might in Mondstadt and 20 for both other regions.
To make it simple, mark your map like the pictures below to find all of them, or follow the video guides.
Small tip
If you don't want to miss any Fading Star's Might, don't spend them so you can count the fragments you collected.
Video Path:
Play Video
Video Path:
Play Video
Video Path:
I missed one last Fading Star’s Might in the video, I added it in the end.
Play Video
Unkown Stars - Interlude
After finishing the first 3 regions, you’ll have to wait for the next day to unlock 3 new regions.
Part 2: Star of Deceitful Dreams
When you reach the 2nd part of the event, you’ll get access to a new quest “The Crisis Deepens”

After completing the quest, you’ll have to find Mona to locate the Meteorite Remains. You simply need to open the map to find Mona’s location. She’s in the east of Windrise.

When you talk to Mona, she will show you the Meteorite Remains locations on the map.

Part 3: Star of Destiny
The objective of the challenge is to collect celestial energy by defeating enemies, then submitting it to the star by standing on the blue light.
Submitting process
If you get hit while submitting the energy you'll be interrupted. So make sure to distract the enemies or submit the celestial energy in a different location.
These are the limits of the items you can buy during this event.
Important
Make it your priority to by Crown of Sagehood, it is a very rare item only obtainable from Limited events.
After completing the Fallen Star challenge 7 times, you’ll get your free Fischl (or a free constellation if you already have her).