I am pretty sure I read this two years ago when (I believe) it was first posted, but it's back as a Pick from the Past and worth having its own thread here.
It's a very cool premise and, as Cynus noted in another thread, would be a great setup for a novel. It would be really great to see how Mason and Everett get on. I am a sucker, also, for stories where the lead character (Mason, in this case) discovers that he has special skills or powers that allow him to do unusual things. (Think Jacob in "Miss Peregrine's Home for Peculiar Children.")
Anyway, it's a fine piece of writing and cries out for more.
R