All This and Heaven, Too... It Means Nothing Without You
Death has just returned Sam's soul, Raphael is winning the civil war in Heaven, and Castiel is badly injured. Dean sells Cas his soul in an attempt to save his angel's life, but that hardly solves all their problems. Sam's still suffering hallucinations of the Cage, Raphael has a powerful new weapon, and the Corn Belt is suffering from a mysterious zombie infestation...
Sequel to All This and Heaven Too.
THEN: Dean sold his soul to Castiel to save the angel's life. Sam suffered hallucinations of the Cage. Dean said "Yes" to Michael. Castiel got dragged into Purgatory by the goddess Ishtar.
NOW: Dean and Sam launch their rescue attempt while Bobby copes with angels who have decided they like it on Earth and want to stay. The Winchesters meet new friends and new foes in Purgatory, where even angels fear to tread.