Severed

"There was a time when I was one. But now I'm two. And I don't ever plan on going back."

Hallie only has half a soul. The other half is in a being created as a vessel for it. When that vessel is cut off, Hallie is lost. Then her mind and body rejects that loss, too. Can anyone pull her back from the edge, while her entire being is crumbling or will she be left to fend for herself?