Unknown Tomb (Location)
A picked-over tomb in the Valley of Kings
This is a patrol hub for the local imperials, you'll see large groups of them come and go throughout the day and night.
Either wait for an opening, or make your own, then drop down to ground level and enter the tomb.
Smash the jars to gain access to a pushable crate.
Push it forward to reveal a room to your right.
Loot the white chest there to complete the location.