The Doctor sighed as she pulled on a pair of jeans that were identical to the ones the corpse under stasis was wearing. She would probably never get used to the body she currently had since she'd spent her entire life as a male until just recently. This was just another example of the love/hate relationship that Lady Luck seemed to have with her. So far during this regeneration, she'd had a great deal of luck...all of it bad. It had started with the fact that she wasn't entirely a she despite the fact that her new brain was insisting she was, which was confusing enough because she'd spent her entire life before then as a he, and the not she bit was currently the most familiar to her.
Well, at least she was finally a ginger, and she had the most beautiful green eyes too.
Though she wouldn't know it until it was far too late to do anything about it, her current bi-gendered body which looked rather feminine until one got a peek in the trousers and found signs of both internal and external reproductive organs would cause the Chameleon Arch to malfunction slightly, though of course that could be the TARDIS doing what needed to be done in order to get the Doctor to save the world yet again. Shoddy maintenance on the Chameleon Arch which she had sworn never to use again during her Tenth incarnation after the birth and demise of John Smith, might've also been to blame for what had happened. Either way, rather than turning her into a human as it should've when she used it, the Chameleon Arch had bestowed upon her a certain genetic compatibility with a certain Terran species that she'd been rather fond of.
Personally, the Doctor would've rather found another way, any other way, to deal with the situation, but since she had encountered Lily Evans moments after her death, she could not go back and save her as that would create the same sort of world ending paradox her Ninth incarnation had inadvertently made when he'd taken Rose back to see her father on the day he died, and she'd briefly rescued him.
As Lily Evans rather eerily resembled her current incarnation, externally at least, using the Chameleon Arch to become a female human with the slight genetic quirk that would enable her to do what the humans called magic, which was close to the Carrionite word based science seemed like a rather logical plan. Having learned her lesson after the John Smith debacle she'd set a couple of commands into her new watch before activating the Arch, namely: 1. Never ever lose the watch, and 2. Open the watch on the day and time it tells you to, no ifs, ands, buts or quibbling about wanting to remain Lily Evans about it.
After a great deal of excruciating pain, a male/female Time Lord that was genetically compatible with the human race, fully capable of reproduction in either gender and thought its name was Lily stepped out of the TARDIS, walked into the Evans residence, walked up to Lily Evans' bedroom and collapsed. As soon as she did this, the Doctor's current companion, a rather nice and extremely spry old lady named Angie Johnson walked off to find one of the nearest pay phones. According to the instructions she'd been given, she would need to put the TARDIS into storage for a while and wait for the Doctor to come back for her. She had another ten years until she absolutely needed to go back to the twenty-seventh century for her treatments, and the Doctor said it wouldn't need to take nearly that long, so, as long as she kept her head down and didn't do anything stupid, she should be fine until the time came.
Albus Dumbledore felt like crying when he saw the bodies of the parents of one of Hogwarts' best and brightest strewn about the sitting room of their home. One of the Order's newest recruits looked as if he would be ill. The Order's Seer, Madam Lovegood, a venerable and rather ancient woman who was nearing death had wandered away without reacting however. He would not have risked bringing her in her current condition if she hadn't insisted that it was vital that she come. Knowing that there was nothing he could do for Mr. and Mrs. Evans, he turned to one of the team that arrived with him and requested that he attempt to put the corpses back together so they could be somewhat presentable when Miss Evans' sister returned. No child should see their parents in this manner. After that was done, he turned to follow the Seer upstairs.
He found the Seer in a room he assumed to belong to Miss Evans. She was standing over an unconscious young woman who bore a striking resemblance to Miss Evans, and probably would have fooled anyone who didn't know the girl that well. He however knew Miss Evans well enough that he could tell right away that this girl wasn't her. He pulled out his wand and prepared to deal with the impostor, but the Seer Lovegood gestured for him to stop before he could fire off the first curse at the person who undoubtedly had something to do with the scene downstairs.
"Lily is needed." the Seer said. "Lily is gone forever, but Lily is needed. The Doctor would be Lily. The Doctor will be Lily. Lily is needed."
Albus understood. Lily was needed for the future somehow, and this impostor would have to be Lily because the real Lily Evans had died with her parents when she shouldn't have. Coming up with a plan on the fly, he wrapped the young woman he would have to start thinking of as Lily Evans in a blanket and levitated her down the stairs. He'd planned on giving the head girl position to someone less controversial this year, but that plan had just fallen by the wayside since he needed Lily away from her dormmates who would soon suspect something was wrong if she lived with them full-time once school was back in session. Any oddities in "Lily's" behaviour could be explained away by the nights events, and if she didn't get too close to anyone who knew her, the story wouldn't be questioned. It was a good thing that it was early enough in the Summer that the badges hadn't yet been handed out.
"She's alive, but just barely." Dumbledore said to the group of Order members who had gathered at the bottom of the stairs waiting for him.
He felt slightly guilty when he saw the relief and traces of hope on the Order members' faces.
Lily was indeed needed, if only for that little bit of hope she had given to the people who stood in the living room of the Evans family's ruined home. He could see the thought in their eyes that if one insignificant muggleborn girl could survive, then there was hope that they and their families could as well. He knew that hope was false, but he wouldn't disillusion his comrades because their hope was good for morale, and if what little hope they had was lost, they would surely lose the war.
It was the night of October 31st 1981. The Doctor felt as if her hearts were being torn out, but it had to be done. The child was needed here. Somehow she knew that the child had to grow up on the Earth of here and now. It was as if she'd known for decades or even centuries that it would come to this, but she didn't know how. Perhaps it was something that had occurred in the great swathe of past that was lost to her during her previous incarnation. There had been a time when she'd suffered a bout of amnesia, and not everything had returned to her after she recovered.
Lily Evans' presence on Earth had been necessary, not for herself, but for the child she left behind, the child that would save the world and all those that would come after him, that small band of humans that had the faintest traces of Gallifrey and the Time Lords running through their veins.
The Doctor said goodbye to her son for what could be the last time as she set the body of a young girl who never really had a chance to live down before the unconscious infant's crib.
Edited 9-12-13.
Edited Again 5-21-14.