Pheeble Will

 is a quest in Fallout: New Vegas.

Detailed Walkthrough
After approaching to Ethel Phebus during conversation she will mention that their land is being stolen by a Heck Gunderson. She followed her husband, Walter to New Vegas so he could take revenge and kill Heck, She asks you to talk to him and get him to go back home with her without getting revenge.(375 xp)

When you speak to Walter you have two options, one is to do what Ethel wants, which requires a speech skill check of 50. The other option is to help Walter spy on Heck(you can convince him to pay you 400caps if you pass a 70 barter skill check). while talking to him he mentions he lost his son, which opens up a new quest. You can choose to report back to Walter, this opens up a few ways to do this. Two ways require a barter skill check, One is promising to kill Heck's son, Ted for 500 caps(80 barter), and the other one is to kill Heck himself for 1000caps (90 bater), killing Heck will be hard because he is inside the Ultra-Lux casino, followed by bodyguards, all carrying weapons. The third option requires no skill checks, however, it will require you to kill both Heck and Ted.(reward = ??)