Because I keep losing track of these. Even though updates are often rare anyways...

This Means War by Jeconais. Quite unfortunately on hold.
http://www.fanfiction.net/s/1603039/9/ (latest)


Meaning of One, Part One: The Philosopher's Stone by Sovran.
http://www.siye.co.uk/siye/viewstory.php?sid=11833&chapter=18 (latest)


Time, Interrupted by madm_05
http://fanfiction.portkey.org/story/6266/20 (latest)
-not as awesome as the two above, but an interesting concept...