There’s plenty to see and do in Destiny 2 The Final Shape after completing the campaign, with the Pale Heart now open for exploration. One option you might want to consider is the Alone in the Dark questline, which sends you on a quest to track down some Lost Ghosts in need of a little TLC.
How to Get the Bold Endings Hand Cannon – Full Alone in the Dark Quest [Destiny 2]
You’ll work with Micah to guide you part of the way, but each of these quests will require you to put in some work on your own to track down the Ghost and get them back on track. Here’s how to complete the Alone in the Dark quest in Destiny 2 The Final Shape.
To begin the Alone in the Dark quest, you must have completed the main campaign The Final Shape and the follow-up quest Convalescence Rootbound. Head to Micah's Conduit to begin Alone in the Dark. Micah will tell you about a lost Ghost and its approximate whereabouts. It's up to you to find the Ghost and restore it with Light.
A marker will appear on your map with the last known location of the Ghost once you accept the quest. You can view this location from the Destinations screen.