It became very apparent in the next few seconds that they weren't, and we started talking about how cool it would be if they revisited that episode, especially to see what happened to Daughter of Mine, since Brother of Mine wondered if the Doctor would ever let her go. Of course, the current showrunners seem to be trying to distance themselves from anything pre-2010 (or retconning that stuff completely), so I remarked that it would never happen. And my husband said, "Then you should write it."
That's one of the awesome things about my husband. He gives me great ideas.
We talked a little about what might happen or how Daughter of Mine might progress, but the story came out very different from the original ideas. One of the major things I ended up discarding was an idea that to gain release from the mirror, Daughter of Mine would offer the Doctor information on where Amy really was in Series 6; after all, she could see anything that any mirror sees and could easily get that information.
Much of the story was a challenge for me, because it's very different from my usual style. First, it's in present tense, my first present tense story ever. Second, I like action and movement in my stories, and this one was all about no action and no movement. There needed to be a feeling of suspension and timelessness, which was hard to do. Third, the Daughter of Mine character is dark and violent, something I don't really identify with.
One thing that occurred to me is that "Every Mirror" has another source that influenced it. In The Sandman, at one point, when describing Dream's Gates of Horn and Ivory and his helmet, the narrator says that he fashioned them all from the bodies of three gods that tried to conquer the Dreaming. Dream respected the third and youngest of the gods and had regretted that he had to kill her, and thus made the helmet out of her skull. I think that little story snippet heavily influenced how this story came out. You know, I wouldn't be surprised if many of my ideas/stories have roots in Neil Gaiman's work, especially The Sandman. He's just briliant.
Anyway, I'm very pleased with how "Every Mirror" came out. I feel like I've learned a lot, that I've accomplished something. It feels a lot more meaningful than most of the other things I've written.