I'd Gladly Lose Me To Find You (слэш)

Sam takes a vow of silence in order to pull Dean out of Hell, but by the time Dean comes back, Sam's lost more of himself than just his voice. Splits off completely from canon after the season 3 finale.
Title is from The Who – Bargain, which ended up fitting the fic a lot better than I'd really intended.
Originally written for the 2010 SPNJ2 BigBang and posted here: http://flawedamythyst.livejournal.com/366852.html which is still where to go if you want to see the lovely art drawn for it.