Lucy West

Lucy West is a character in Fallout 3. She is a resident of Megaton and regularly visits Moriarty's Saloon. She will ask the Vault 101 Dweller to deliver a message to her relatives in Arefu thus adding the Blood Ties quest to your log.

She will give you 100 caps (and negative karma?) to find her brother if you speak to her after visiting Arefu and discover the fate of her family.

This NPC may disappear if the player kills the vampires in Blood Ties and also kills the people living in Arefu. Her house in Megaton becomes empty, however her possessions are still highlighted in red, meaning loss of karma if stolen.

She may be found dead in Megaton for non-patched versions of the game as NPCs were sometimes falling to their deaths. This does not prevent you from taking the quest Blood Ties but it prevents you from getting the letter that she wants delivered to her relatives. This is a bug that has been fixed in the v1.1.0.35 patch.

If you kill Evan King, she will refuse to engage in conversation with you.

Appearances
Lucy appears only in Fallout 3.

Related quests
Lucy appears to be West.
 * Blood Ties

Behind the scenes
Given how the quest she gives involves a group of wannabe vampires, her name might be a reference to the character Lucy Westenra from the novel Dracula.