The survivors of the Sierra Madre thought about gathering at the Fountain and waiting for the Courier. In the end, the collars' silence made them uneasy, and the fear of turning on each other made them hesitate, and leave the goodbyes - unspoken. The radio message at the fountain was enough for them, and there was no need to add another farewell on top of all they had suffered.
When Dog fell in the Sierra Madre casino, two died as one. Dog died hungry, alone, frightened. The voice in his head died with him. Screaming. Furious. Enraged. But the voice was gone, and Dog was grateful. At least Dog was dead and the voice needed to watch over him no more. In the moment before their lives ended, the wall between the two personalities fell. The two became silent as they saw the chain between them. Hunger and control are twin greeds, something Dog and his shadow had never realized.
Dog forgot himself, as did the voice that raged within him. After their passing, a new voice spoke within the mutant's shell. It was difficult for the voice to remember the two it once was... there was the beast, Dog consumed by hunger... ...and the other in reverse... the one consumed by control. Both were driven by need for the other. The Courier brought them together, somehow, joined the two into one. All that happened at the Sierra Madre, was a faint memory to the new personality... like a flickering light in the clouds of the mind. The new voice did not think of the Courier again until the battle at the Divide reached his ears. The battle between the two couriers, beneath the torn skies and the Old World flag... each bearing a message for the other. And the mutant prayed the Courier that had saved him... had been saved in return.
Dog alive, God alive.
Dog, free of the voice inside his head and no longer waiting on the voice of the Master, wandered back West. His hunger never ended. Often, small communities would suddenly vanish. They were assumed to have been hit by Wasteland creatures and dragged away... dogs, brahmin, and humans alike.
Only Dog alive.
Freed of both Dog and the one who held Dog's leash, the other voice resumed control. First the mind, then finally, the mutant's shell. His first act was to tend to the scars on the body with careful hands, slowly healing all the scars except the ragged name torn on his chest. He briefly thought of remaining at the Sierra Madre. But it was a monument built by humans, representing something he no longer needed. He began walking west, in search of others like him. As he did, he spoke of the courier who had set him free and allowed his life to begin again.
Dean Domino, entertainer, singer... thief... had his last show on the Sierra Madre stage. The heist he spent over two hundred years planning fell apart, just as the first, by underestimating his partner's strength. Not long after the Courier left the Villa, the lights in the theater shut off, one by one. Only Dean's Hologram remained on stage, singing silently to an empty room.Still... as consumed as he had been with its riches and ruin, the Sierra Madre had held him captive long ago.
Dean Domino, entertainer, singer... thief... explored the Sierra Madre not long after he was rescued by the Courier. Once he left the theater, the Sierra Madre recognized him as a guest, and many doors opened to him. He had to admit, it had been built to last. During his search, he came across the final records of Vera and Sinclair, and realized what happened the night the bombs fell. He felt strangely sad for a moment, and he had no idea why. Shrugging it off, his mind turned instead to where the Courier had come from. Vegas still survived, out there in the Mojave. Its sights, sounds... and casinos, ripe for the taking. So giving the Sierra Madre one last nod and a wink, he set off beyond the Cloud to begin again.
Christine, scarred by her hunt for Elijah and unable to let him go, perished in the Sierra Madre Casino. She never completed her mission, nor did she stop to consider what had driven her to accept the mission in the first place. Obsession is another form of greed, a lesson that Christine never learned.
Christine, her mission complete, found new purpose as the Sierra Madre's warden. She watched over it silently - by choice. Over time, the ghost people came to see her as one of the Holograms. They would watch, silently, as she walked among them. At times, Christine thought of the Courier, who had kept Elijah's hand from her throat. The Courier reminded her of the other courier she had met in the Big Empty, and wondered if the two had found each other at last. She did not think of them again until she heard the legends of the Divide. The Divide, where the two messengers, the two couriers, fought beneath an ancient flag, at the edge of the world.
You've heard of the Sierra Madre Casino. We all have, the legend, the curses. Some foolishness about it lying in the middle of a City of Dead. A city of ghosts. Buried beneath a blood-red cloud... a bright, shining monument luring treasure hunters to their doom. An illusion that you can begin again, change your fortunes. Finding it, though, that's not the hard part. It's letting go.
Elijah: You've heard of the Sierra Madre Casino. - Christine: We all have, the legend, the curses. - Dean: Some foolishness about it lying in the middle of a City of Dead. - Dog: A city of ghosts. - God: Beneath a blood-red cloud... - Dean: ...a bright, shining monument, reaching out, luring treasure hunters to their doom. An illusion. - Christine: A promise that you can change your fortunes. Begin again. - Elijah: Finding it, though, that's not the hard part. It's letting go. - Dean: It's letting go. - Christine: It's letting go. - Dog: It's letting go. - God: It's letting go.
In the years that followed, the legend of the Sierra Madre faded, and there were no... new visitors to the city. Years later, when a mysterious blood red cloud began to roll across the Mojave, then West toward the Republic, no one knew where it had come from. Only that it brought death in its wake. Attempts to find the source of the toxic cloud failed. The Mojave was cut off. Through the Cloud, lights were seen from HELIOS One. There were stories of ghosts immune to gunfire, who struck down anyone they saw with rays of light. The last chapter of the Mojave came when a modified REPCONN rocket struck Hoover Dam, releasing a blood-red cloud, killing all stationed there. All attempts to penetrate the Cloud and re-take the Dam failed, and both the NCR and Legion finally turned away from it, citing the place as cursed. In the years that followed, communities across the West began to die as traces of the Cloud began to drift over lands held by the NCR. Only two remained alive in the depths of the Cloud, at the Sierra Madre, waiting for their new world to begin again.
Low NCR reputation and the Courier sides with Elijah.
The Courier, lured by the promise of the Sierra Madre, could not escape. Once inside the vault, the casino did not let go. When the Courier finally passed away, the casino created a new Hologram to walk with the other ghosts that filled its casino. It was a pre-programmed homage intended for another. It assumed a new meaning in the likeness of the Courier. A means of allowing even the dead to begin again.
Several unused slides for the ending exist in the game files. These include a slide of Christine killing Elijah, a slide of the Cloud overrunning Hoover Dam (possibly meant for the ending where the Courier sides with Elijah), one for Elijah trapping the player in the Sierra Madre vault, and some others.