Disclaimers and Stuff: I do not own BTTF. If I did, Clara would not exist. ^^ Bob G. and Bob Z. own it, ya hear? Lisa, however, I do own.

Lisa woke with a start, breathing deeply. She quickly put on her glasses and activated the dimmer switch for the lamp next to her bed so she wouldn't be totally blinded by the light when it came on.

It all came back to her, then, as she sat in bed with her knees drawn up to her chest. She had been dreaming. Dreaming of the only people on Earth she had categorized under the word "family" since her own had been destroyed many, many years ago.

FLASH!

"…you telling me you're an alien?"

"Yes. Do you have a book that shows the stars in the winter sky?"

A book was passed to her. She flipped through it until she came to the constellation Orion. She pointed to the middle star in the belt.

"That's Alnilam. I was born there…"

FLASH!

Doc… she thought, shaking her head at the memory that had just assaulted her mind. Hill Valley, California's town eccentric had held a special place in her hearts since they first met on Earth in the year 1983.

No, Lisa wasn't quite human. She is, in human terms, an alien from another world. That world is Alnilam, a planet that is located orbiting the star in Orion's belt that held the same name. Although she looked like an ordinary 19-year-old human girl, her age greatly exceeded a millennium. Her most distinguishing feature – a pair of retractable yellow-gold wings – was what really set her apart from the humans, other than her powers, which will be addressed as needed.

Lisa was considered by many (although, not herself) as pretty. She had long, waist-length brown hair, brown eyes, a semi-decent figure, and a quirky, if stubborn, personality. She was loved by many; unfortunately, the majority of them were mortal, and she is not. Lisa would live forever. That was one of the hardships of her life: outliving nearly everyone she knew and loved. But, she dealt with it as best she could. Coming home to Alnilam helped. The unicorns that lived there would live forever, too, provided nothing serious happened in their early childhood to prevent it.

Sighing, Lisa got up out of bed, slipped on her slippers, and walked across her room to the shelves that lined a wall or two. Shelves that held photographs of all the friends she made in her travels. One such photograph stood out amongst the others. The one she had taken in her dream. She had taken it in real life, too, during that two-week-long weekend in Hill Valley.

During a trip to Earth in June of 1983, Lisa had met and befriended one Dr. Emmett L. Brown ("Doc"). Neither of them was quite sure just what, specifically, had brought them together, but they were both quite happy when it happened. When Martin McFly ("Marty") had come into the picture, well, it was twice as nice. After two years, in October of 1985, Doc revealed that he had invented a machine capable of traveling through time. She and Marty had, unwillingly, been the guinea pigs (after Einstein) and got sent into the past, to November 1955. Needless to say, what followed could have made a brilliant trilogy of movies. Marty nearly erased himself from existence, Doc would have died twice, and, in the end, he wound up with a wife and two sons.

That was the clincher. Doc with a family. A family that didn't include Lisa. After she and Marty had come successfully back to 1985 from 100 years in the past, as they surveyed the destroyed DeLorean (it had gotten hit by a train, after Doc had decided time traveling was too dangerous), Doc had come back in a time traveling train. One couldn't keep a good scientist down, after all.

FLASH!

"Meet the family. Clara you know."

The woman – Clara Clayton – beside the scientist smiled and waved. "Hi, Marty! Hi, Lisa."

Marty was grinning from ear to ear. "Ma'am!"

Lisa, however, felt as if both her hearts would stop right then and there. She had known Doc had fallen in love with the schoolteacher who had originally fallen into a ravine, but…family? She was his family. And yet…Doc looked so happy…happier than she had ever seen him…

"These are our boys." Doc said. "Jules…" A young boy of about 10 or so stepped in front of Doc and Clara. Doc went on: "and Verne." Another boy, this one 8 years old or thereabouts, stepped next to his brother.

"Boys, this is Marty, Jennifer, and Lisa…"

FLASH!

Lisa wiped a tear from her eye. She had been happy for Doc, really, she had. It occurred to her, long after she had left Hill Valley, that she was a little selfish for being jealous of Clara. Doc was happy. And Lisa was happy Doc was happy. Honest. But, she missed him so. Marty, too.

FLASH!

"It's great, Doc. Thanks."

Marty shifted the photograph to one hand and shook hands with Doc. The scientist suddenly looked around. Someone was missing…

"Marty, where did Lisa go?"

The teenager looked around. "She was just here. Jen, did you see where she went?"

Marty's girlfriend shook her head. "No. I wasn't watching." She glanced around. "It's as if she vanished into thin air."

Marty and Doc exchanged a look. It was entirely possible their alien friend had done just that…

FLASH!

She had. Once Doc had given Marty the photograph that had been taken in 1885 in front of the clock that would eventually sit atop the clock tower, she had just left. They didn't need her anymore. Even though the events were years (and years and years) past, she still felt a pang in her hearts when she thought about them. Doc and Marty had been special to her, and she never understood why, exactly. And, now, she was dreaming of her old friends.

That, in itself, was strange. For as long as she could remember, Lisa had been a lucid dreamer, which meant she could take 100% control of a dream she was having. However, for some strange reason, she had no control over the events in these. Perhaps because she was reliving a memory…? No, that couldn't be it. Even those she could control. Something else was up…but what?

Lisa sighed, a little annoyed with herself. She looked around the room, as if she felt someone could be watching her. That was impossible, however. The only other occupant of the house – her black and white domesticated shorthair cat, Fluffy – was sound asleep on the couch in the living room; or, at least, she was the last time Lisa checked; she wasn't in the bedroom, that one thing was certain. As for the rest of the planet's inhabitants – the "wildlife", so to speak – they had better things to do in the middle of the night than go prowling around the house, inside or out.

Like sleep.

Sleep. Right. That's what Lisa was doing before the dream.

She decided to put it out of her mind and go back to bed. Before doing so, however, she picked up the photograph of herself, Doc, Marty, Einstein, and the DeLorean, and carried it to her bed. She placed it on her nightstand, shut off the light, and went back to sleep.

End part two.