Jeff Branson

Charlie contacts Sam and Dean after she finds the book of the dead -- which could help eliminate the mark of Cain; Castiel and Metatron look for Castiel's grace.

The team investigates a murder linked to a counterfeit diamond operation, but an illness forces Jane to direct his colleagues from the office as he recuperates. Meanwhile, Abbott is concerned that transgressions in his past could harm is wife’s chance to obtain a prestigious job in Washington D.C.