This is a bit late, but I finally have some down time from moving into school and I just had to leave a review, because this is the absolute hands-down BEST fic out of all the wonderful fics this round.
There are so many things I love about your story, I don't even know where to start. I love the creativity and originality of the plot - I had never read an AU or time-travel piece quite like this, and would never have imagined anything like this on my own! An alternate-dimension Snape that is not quite Snape but still IS...mind-boggling! lol. And such a great take on post-DH, giving the development of their relationship completely different nuances and flouting all the conventions! Awesome!
Also, I love your Harry. I absolutely adore how mature and grown-up he is, without being boring or annoying. The way he could concede miles to Snape out of the depth of his love for him, while at the same time not giving an inch when it comes to demanding respect. I have read too many fics in which there is an imbalance in the Snarry dynamic, and I love that you still manage to retain Snape's in-control persona and the characteristic dynamics of their relationship without making Harry an obvious sub.
And of course, I really enjoyed your Snape characterization. I loved how nasty he was in the beginning, and the way he took advantage of the situation was just so in character. I hate a boring or too-nice Snape. It made his determination to win Harry back later all the more fun!
And did I mention, the plot itself is to die for. Rarely have I come across a snarry fic with a mystery so engrossing and page-turning that the snarry relationship becomes almonst a side-concern at times. (But of course the strategically placed sex scenes make sure that never compeltely happens...) Every new twist in the plot took me by surprise and everytime I thought I figured it out, there are new developments!
Now I can't wait to read your other fics (one of which looks satisfyingly long and epic)!