| Red Dead Redemption:|
Undead Nightmare mission
On a Pale Horse
|Location||Great Plains, West Elizabeth|
|Rewards||Apocalypse horse Death (if not previously found)|
| Undead Nightmare|
"A Civilized Man"
Though being listed as such, it is not really a mission and seems to be more the permanent state of the Undead Nightmare world upon completion of the game. There is no specific loading screen title card and the mission seems as if it's simply a follow up of the mission "A Civilized Man", but when the player saves the game, the title given will be "On a Pale Horse".
In the epilogue of the mission "A Civilized Man", Seth Briars is seen stealing Ayauhtéotl's Mask from the Escalera Catacombs. An action that apparently takes place sometime after the events of "The Last Enemy That Shall Be Destroyed" because it also causes John Marston to rise from his grave as well, though he does not become a mindless flesh-eater.
According to the in-game message:
"Marston was buried by his wife and son with a flask of water he seemed to treasure. They did not know of its special power. Now, he comes back to this earth with the body of an undead wretch, but the soul of a man. Help put him to rest by finishing his work on earth."
However, unless the player still has some game elements incomplete (such as ambient challenges or Missing Souls missions) there does not appear to be any other mission upon which Marston can embark that will 'put him to rest'. Seth and the Mask are nowhere to be found and the entrance to the catacombs has closed. Towns will still fall victim to undead outbreaks, but the outcome will be the same as when the player completed these tasks before this last mission.
- Like other missions in Red Dead Redemption, the name "On a Pale Horse" is a reference to a passage in the Bible. In this case, it is Revelation Chapter 6, Verse 8, which reads "And behold a pale horse: and his name that sat upon him was Death, and Hell followed with him."
- The name "On a Pale Horse" could also be a reference to the horse, Death which was white in the book of revelations, that the player unlocks on completion of the game.
- The name "On a Pale Horse" might also be a reference to "On a stale horse", a lyric from Bon Jovi's "Wanted Dead or Alive".
- This mission does not contribute towards 100% completion.
The following Trophies/Achievements can be acquired upon completing this mission:
Complete "On a Pale Horse".