History of Braced for the End

Braced for the End is a The Final Shape triumph (20 points): locate unpartnered Ghosts throughout the system and bring them to the Pale Heart (10 Ghosts recovered).

How to complete

1. Take the Ghost-finding quests from Micah-10 in the Pale Heart. A Bungie forum moderator confirmed these quests are finite (13 quests in the poster's case): each sends you to find a Ghost in a different place or activity.
2. Finish enough of them to recover 10 Ghosts; the triumph then completes.
3. After all the quests are done and Microcosm is earned, Micah-10 only offers the repeatable quest Alone in the Dark, so do not expect to restart the chain.

I could not open a guide listing each Ghost location, so exact steps per Ghost are unconfirmed here.

Rewards

Triumph points. Completing the quest chain earns the exotic Microcosm (per the forum post).