The following is based on Fallout 3 cut content and has not been confirmed by canon sources.
Contract With Ahzrukhal is a paper note in Fallout 3 which was cut from the final version of the game. It can only be obtained via console commands.
Transcript[]
I, AhzhrukalQuoted verbatim, error appeared in the original source (henceforth known as "seller") agree to pass possession of the property known as "Charon" (henceforth known as "PROPERTY") to %n (henceforth known at BUYER") upon the death of the Ghoul known as Greta (henceforth "TARGET").
By execution hereof, BUYER acknowledges that all tasks related to TARGET shall be completed in due haste. Afterfor PROPERTY shall be transferred to BUYER with equal due haste.
(henceforth known as "seller") agree to pass possession of the property known as "Charon" (henceforth known as "PROPERTY") to %n (henceforth known at BUYER") upon the death of the Ghoul known as Greta (henceforth "TARGET").