Without End (PG, Ten/Simm!Master), by
versaphile. Read it. It's a beautiful post-End of Time AU. It's a fucking brilliant exploration of the suicidal, angsty Ten and the Master, and yet it's not as dark as it seems; but has flashes of incredible love and humour in it (which is even more impressive, for such a short fic). There is still hope for them. Somehow.
Not alone. He has no gods to praise, and it's on such nights that he invents them. Gods of time and luck and impossible things. Gods of imperfect, stubborn, painful love. It's still love, what they have, no matter how old and rusted and abused.
And that damn fic has made me cry every time I've read, and that's... three times so far. That's how good it is.