Charlie dead/ not dead fic?

Hello all, I know this com is kinda slow but I'm still hoping you can help.

I was following a fic a few months ago, multichapter, with the plot being that everyone thinks Charlie is dead, but he's not, he's injured and in a secret location. I believe that there were at least 6 chapters. Any help would be great! :D

Oh yes, and I read it on fanfiction.net. And I remember very specifically the use of the word "sibilant". Don't ask me why I remember that and not the title :D