While exploring Immortals Fenyx Rising, you’ll come across night chests. These chests are only able to be accessed at night and are guarded by difficult enemies. Thankfully you are able to change the time in the game to night by holding the options button. Below are the locations of the night chests in Clashing Rocks!
This chest can be found at the top of an island southwest of the Messenger of the Gods fast travel point.
Defeat the enemies then open the chest to find a Midnight Fragment.