Followers of the Apocalypse

The Followers of the Apocalypse inhabit a library in the western segment of the Boneyard. Lead by Nicole, the Followers are dedicated to scholarship and to ensuring that humanity does not repeat the mistakes that led to the Great War.

While ostensibly like the Children of the Cathedral in being dedicated to the cause of spreading peace throughout the wasteland, they are suspicious of the latter's motives. Talius, a ghoul-like mutant partially exposed to FEV by the Master's forces, found refuge among the Followers, and helped them understand the true nature of the Children.

After the death of the Master, the Followers of the Apocalypse became a major influence in the newly-founded New California Republic. With the Vault Dweller's help, they gained control of the LA Boneyard.

Comments
There are two possible endings for the Followers of the Apocalypse in Fallout. One of them is described above. In the other one, the Followers were massacred by the remnants of the super mutant armies of the Master. The happy ending for the Followers is bugged and unavailable, therefore many players have assumed that the Followers were destroyed. However, since it is only a bug, both endings are viable. It is known that the happy ending was assumed to be canon by the developers of Van Buren, the canceled Fallout 3 by Black Isle, as Followers of the Apocalypse were to appear in the game (more specifically, at the Hoover Dam).

Appearances in games
The Followers have appeared only in the first Fallout. They aren't even mentioned in any of the other games published so far. They were to appear again in Van Buren.