Worlds Colliding (Supernatural, Book Three)

Catty Winchester sold her soul for her siblings Scarlett, Sam and Dean. She has a year left to live, and she'd like to make the most of it, "kill some evil sons of bitches and raise a little hell".
Scarlett, Sam and Dean are trying to save Catty, but they don't know that if they save her, that they themselves die in her place.
Family friends Ness and Bobby Singer are always there for a hand in folklore, a job or any other situation that they need help in, but what happens when Ness and Bobby need help, and Sam, Dean, Catty and Scarlett have to come to the rescue this time?
And will they be able to save Catty, or is she going to Hell?

All rights go to the creators of Supernatural and the CW, except for the fanfiction characters and plots.

Heartofice97: Catty Winchester, Brett Blake

Mysticfalls1997: Ness Singer

Katherinep97: Scarlett Winchester, Zane