In Destiny 2: Shadowkeep, you must clear the Essence of Stealth and reward you with the legendary Every Moment of Life submachine gun. The first step is to get into the Circle of Bones - the central location that connects all the tunnels.
Start in Sorrow's Haven and travel to Hellmouth. Turn right and continue straight into the tunnels.
Follow the path down and turn right again. In the next room, open the door on the right and continue straight ahead.
You will find yourself in the room in the screenshot above. Go through it and open the door on the other side - you will find yourself in a dark corridor, which will lead you to the Circle of Bones.
Now turn right and all the time follow the railroad along the abyss. You will find yourself stumped with the Hive: destroy it and take the Dropped Feathers on the ledge.
The remaining tasks of the "Essence of Stealth" quest are to pass various tests (patrolling, public events, Lost Sectors on the Moon) and kill 50 enemies with a submachine gun.
