No. 20

Prompt: any, any, dark AU
http://comment-fic.livejournal.com/699131.html?thread=92197371#t92197371
When the Wraith spill through the gate, Elizabeth doesn't recognize him at first, because spiky hair isn't common among the long-haired Wraith, but his hair is white in an army of white.
And then he lifts his head and fixes her with that cold, reptilian gaze, and she realizes that underneath the pale, clammy skin and flattened, reptilian features, he's John Sheppard.