Silver's Debt

Silver's Debt is a minor Fallout 3 quest. If you tell Moriarty you don't have 100 caps to buy information on your father, he will give you a cap raising task. He wants you to find a woman called Silver and get his money back. You can find Silver at the north-west of Megaton, inside a ranch house.

You reward yourself by taking any actions you want. But best is, convincing Silver, by doing this, she'll give you 400 caps (bad karma), a nice start for the game.