Help! I have the CD, but lost my manual.

[SplendidTuesday]

So I'd been playing Dominions 3 for about a year, when I lost my game manual a year ago. Thing is, I still have the CD itself, and I still want to play the game. I can't play it though, because a few months after I lost the manual (and thus the CD key), I had to wipe my computer completely, which uninstalled Dominions 3.

Now, I payed full price for Dominions, and I still have the CD, so I don't think it's fair that I can't play it anymore just because of two unfortunate events.

Is there any way that I could get a valid and legal CD key? Or even a new manual (with a CD key)? I know I paid for the game, and I can even take a picture of my CD if needed, but I just don't have the key needed to play the game.