October 31st, 1981

"James! It's him! Take Harry and run!" came the panicked shouts of Sirius Black. He drew his wand and charged at the silhouette standing in the destroyed doorway, only to be hit by a flash of green light. James watched his friend die in abject horror, before being brought out of his shock by Remus's cry of "Go James, I'll hold him off!"

Not needing to be told twice, James bolted up the stairs towards Harry's room, tears pricking at his eyes as he heard the death screams of one of his best friends. Barging through the closed door, James rushed to the side of the baby blue cot that housed his sleeping son. Looking down at him, James knew that he would do whatever it took to keep him alive, even if it cost him his own life.

The Potters had been so assured of their safety behind the fidelius that they hadn't even bothered to create contingency plans. This meant that James was trapped in this room with his wand on the table downstairs and a sleeping infant behind him. Cursing his foolhardiness, he started to move furniture in front of the door in a futile attempt to hold Voldemort off until the order could arrive.

All of a sudden, the door way exploded with a loud bang and the sound of splintering wood, revealing the tall, hooded figure that stood behind it holding a wand loosely in his right hand.

"Step aside, James," came his high, aristocratic voice, "I want only the boy. No use spilling pure blood when avoidable."

"I'd rather die." James spat back, gritting his teeth defiantly.

"If you say so." Replied Voldemort in mock resignation, "Avada Kedavra!"

With a flash of green light, James's life ended.

Crack.

Crack.

Two figures appeared out of nowhere in the front garden of Potter Cottage and immediately raced towards the empty doorway, barely even registering the debris strewn across the lawn from the upstairs bedroom wall and ceiling. Lily Potter was first into the house and ran straight past the corpses of two men she had known since she was eleven, up the stairs and into the first bedroom on the left.

She stood there for a long moment, slowly taking in the scene in front of her. Her husband lay still and unblinking on the floor, his eyes glassy and his face emotionless. Between herself and her husbands' corpse lay another, a hooded figure that lay face down on the floor, his hands seemingly clutching at his face. And on the opposite side of the room was the object that commanded the most of her attention, a light blue cot in which the corpse of her one and only son.

"I'm so sorry, Lily." Came the soft voice of Albus Dumbledore behind her. "it appears that in his sacrifice, James managed to finish the Dark Lord."

Lily heard the words but they didn't register in her mind, the only thing she could think about was how the two people she cared for above all else were dead, and there was nothing she could do about it.

Stepping around her, Dumbledore made his way over to the cot on the other side of the room. Peering into it, he leaned in closer to get a better look at young Harry before reaching out a hand and touching it to the boy's pulse.

"It… it can't be," he stuttered, whirling around to face Lily, "Harry's alive!"

Lily stared at him for a full second before she realised what he had just said and dove towards the sleeping infant. Faster than Dumbledore though possible, she had the child in her arms, gently rocking him and whispering in his ear, tears streaming down her face.

"It's okay Harry, mummy's got you. You're safe now."

Lily waited in the St. Mungo's lobby for the Healers to finish checking Harry, nervously chewing her lip as she sat in one of the blue leather chairs. Her mind was a whirlwind of emotions, grief a the death of her husband, joy at discovering Harry alive, guilt for not being there and failing to save James, Sirius and Remus.

And finally, overwhelming, uncontrollable rage at Peter Pettigrew, the man that had sold his only friends to Voldemort and ruined her and James's happily ever after. Ever since she had discovered that she was pregnant with Harry, Lily had dreamed of the war ending and settling down with James for the rest of her life. Now, that dream would never come to pass.

"Mrs Potter?" came a voice to her left, bringing her out of her thoughts, "My name is Chief Healer Weathers. If you would you like to come to my office, I can give you your son's results. Professor Dumbledore is there already."

"Okay." Said Lily, following the Healer.

Once in his office, she sat down on one of the chairs in front of his desk, the other being occupied by Dumbledore. The healer sat down in the high backed leather chair behind his desk and sighed.

"I'm afraid I have some good news, and some bad news," He began looking at them seriously, "Harry is for the most part unharmed and is currently stable. How he has managed this is a mystery to all the top healers here, as on all three of the tests we did we detected high levels of spell residue around the scar on his forehead. The spell in question was… was the Killing Curse."

Lily gasped at this, and Dumbledore frowned at the Healer.

"Forgive me for asking what must be a stupid question, but I was under the impression that that particular curse kills any and all that it touches." Dumbledore's question seemed to embarrass the healer, as he looked away from the old wizard's gaze.

"Well… it would seem that someone has finally survived it. Young Harry is the first person on record to have ever survived it. Many of the healers have begun referring to him as the 'Boy-Who-Lived'."

The healer looked back to Dumbledore with a pensive expression.

"You wouldn't happen to know how this might be possible, would you Professor?"

Dumbledore frowned, clearly in deep thought.

"I must admit that I cannot come up with a single plausible hypothesis, though I will be sure to think more on the subject." Dumbledore stood up, still looking pensieve before turning to the Chief Healer, "Well, Chief Healer, if that's all I must be going. The ministry is surely in chaos, and I find that they are best dealt with quickly, before they have time to do anything foolish."

"Actually Professor, there were a couple other things of importance that we found. The first being the residual dark magic attached to Harry's scar."

That statement was met with silence from the two others, as they stared at him.

"Will he… will he be alright?" asked Lily, her voice shaky.

"That remains to be seen, Mrs Potter. We have no way of knowing how this particular condition might affect him." The healer paused and turned to Dumbledore, "Professor Dumbledore, are you familiar with… horcruxes?"

Dumbledore visibly stiffened in his chair.

"I have… some knowledge of them."

"Well," continued the healer, "It would appear that there is a horcrux trapped in Harry's scar."

Dumbledore sat very still, and very silent, so much so that one could barely see him breathing, his face an emotionless mask.

"What… what is a horcrux exactly?" asked Lily, afraid of the answer she might get. Before the healer could reply, Dumbledore spoke very quietly.

"It is a fragment of a person's soul, split in two by the greatest act of evil, murder. It has been used in the past by dark wizards to prevent their souls from passing from this plane onto the next, anchoring them in this world. It is one of the most terrible things one can do, and the fact that a part of the Dark Lord's soul may have attached itself to Harry is… worrisome to say the least."

Lily stared at Dumbledore in shock, not believing what she was hearing. Harry, her Harry, had a part of Voldemort's soul in him. This was a waking nightmare.

"I think…" she began, her voice shaky, "I think I might…" and with that she collapsed.

Lily opened her eyes to find herself lying in a hospital bed. She looked around, wondering why she was here when it all came flooding back to her. James was dead. Harry had a piece of Voldemort's soul in him. Lily felt her heart beat faster and her breathing become heavier as she tried to process what had happened over the last few hours.

Nearby, a healer had seen that Lily was beginning to have a panic attack and ran over with a calming draught, gently lifting it to her lips and tipping it back as Lily began to drink it. Her thoughts clearing up, Lily remembered why she was in the hospital in the first place.

"H-Harry… where's Harry?" she asked the healer the sense of urgency in her tone getting her attention.

"He's over here, Mrs Potter." Replied the healer, walking over to a nearby cot and picking up the sleeping infant inside. She gave her to Lily who held him to her chest, brushing his hair loving whilst being careful to avoid the large bandage that had been applied to his forehead where the scar had been.

"I'll tell the Chief Healer you're awake." The healer told her, leaving the room and returning a minute later with the Chief Healer.

"Ah, Mrs Potter, I'm glad to see you're awake. I'm sorry for causing you so much distress earlier." He said, walking over to stand by her bedside. He pulled up a nearby stool and sat down on it.

"There was one other item of interest that was a little more personal that I need to inform you of." He paused seemingly thinking about what he was going to say next, "Mrs Potter, are you aware that you son is an incubus."

"A what?"

"An incubus." Replied the healer, "A creature of lust."

Lily sat there shocked, no longer brushing Harry's hair as she stared open mouthed at the healer.

"But-" she spluttered, "But he's just Harry. He doesn't look like an… an incubus. What… what even is an incubus?"

"Incubi are identical to humans in almost every way, but for a few important details." The healer said, "Firstly, once they hit puberty, they must ejaculate inside of a woman's vagina every day, or else they might well die."

This statement caused Lily's eyebrows so skyrocket, but she was to shocked to say anything.

"Secondly, their genitalia provide enhanced pleasure to the woman they are mating with. I'm afraid I'm not really an expert on the subject, as the last incubus was recorded to have died some time around 1786."

"So… so Harry is going to have to… have to have sex… everyday?" She finished, trying to vocalise it herself to help process it.

"That's right, Mrs Potter. As I said, I'm no expert, but if you go to the Department of Magical Creatures at the Ministry, they will be able to give you much more information than I can. In the mean time, you'll be happy to hear that both you and Harry are now fit to leave the hospital, so you may return home whenever you please, although if you wish to rest a little longer I will understand completely."

"No… no that's alright. I think I'll go home now."

"Very well Mrs Potter. I wish you the best of luck."

Lily stood nervously in line in front of the desk in the reception area of the Department of Magical Creatures to make an appointment with one of their experts. She had left Harry in the relative safety of Potter Manor to go to the Ministry before the day's newspapers were printed and distributed, so as to avoid the crowds that might wish to speak to her about the defeat of Voldemort.

The revelation that her son was an incubi had been a rather big shock, and she had about a million questions for the expert that she had come to see.

There were three people in front of her, all looking rather odd. One had a crup on a leash, but instead of having three tails, each of those tails split into another three tails. Another seemed to be conversing with the receptionist in what sounded like pig snorts, whilst the third was so pale a wrapped up that Lily suspected he might be a vampire. After a few minutes, Lily was at the front of the queue.

"How can I help you ma'am?" asked the receptionist, a young girl who looked to be about twenty.

"I was wondering if I could speak to one of your experts about… about incubi."

"I'm sorry could you repeat that?" asked the receptionist, not really sure what the woman in front of her had asked to see an expert on.

"An expert on incubi. Plural of incubus." repeated Lily. She was slightly nervous that someone would overhear her talking about it as it was a rather embarrassing condition to have.

"Well I'll have a look though our records to see if we have an expert on… incubi." With that, she left the reception area through a door behind her. As the door opened, Lily could see big shelves filled with boxes that must have housed the records. After about 5 minutes, she returned holding a file in her hand.

"It seems that we do have an expert for you miss." She said, sitting back down behind the desk and opening the file. "Mr. Clarke is the Ministry expert on mythical and extinct creatures. You'll find his office down that corridor there, last door on the left." She gestured towards one of the corridors that led from the room.

"Thank you very much." said Lily, walking to the door she was directed to. She knocked politely on the door, waiting for the "Come in!" from its occupant before opening the door and stepping in.

"Hello, my name is Lily Potter." She said, walking over to the desk in the middle of the small, cluttered office and shaking hands with the man sitting behind it.

"Pleased to meet you, Mrs Potter, I'm Tarran Clarke." said the man. He had a large white beard and receding hairline, and wore a bright purple set of wizard's robes. "Please, take a seat. Now, what can I do for you?"

"I was told that you could tell me more about… about incubi." Mr Clarke's eyebrows rose at that, obviously not used to being asked about them.

"I must say, that is a rather peculiar request Mrs Potter. Incubi are a rather… esoteric race for the average person to be interested in learning more about. Are you perhaps writing a paper for a Mastery?" Lily blushed and looked away, more than a little embarrassed at what was about to tell the man.

"I… I've just gotten back from St. Mungo's with my son. Apparently… apparently he's an incubus. They told me to come here for more information." The man's jaw dropped open at this revelation.

"Mrs Potter, there has not been a recorded incubus in Britain for almost 200 years. This is most extraordinary. I know this might be a bit of an odd request but, well as a scholar I have to ask, could I perhaps study your son? Run a couple tests on him?"

"You most certainly may not!" snapped Lily, suddenly very defensive of Harry. Realising she had just been rather unnecessarily rude to the man, she apologised, " I'm sorry, it's just that I've had a rather trying day. I thought that it would be best to learn as much about incubi as I can since my son is apparently one."

"Quite understandable, Mrs Potter," the man placated, "I suppose, in that case, that I should give you the comprehensive rundown of incubi. In essence, incubi are creatures of lust. Once a day, everyday, they must ejaculate inside the vagina of a woman or else, after 26 hours without doing so, their higher brain function will begin to fail until they ultimately suffer brain death within 6-8 hours. I must also add that in order for incubi to 'feed' as it is known, they must ejaculate inside the vagina of either humans or species in the Human class of magical creature, including Veela and half-breeds.

"The penis of an incubus will provide enhanced pleasure to the woman he is with, in order for him to be able to attract the necessary mates to feed off of. Their penises will be larger than that of the average human male, usually being about four inches when erect at age eleven and growing rapidly until they reach up to ten inches when erect by the time they hit fourteen. Incubi's bodies will also become naturally fit, regardless of how much exercise they do or what they eat. The age eleven is significant, as incubi always hit puberty exactly eleven years after they were born.

"There are a couple other, less significant differences between incubi and normal human males. Firstly, incubi are incapable of self-pleasure. On top of the enhanced pleasure that sex with an incubus provides, veela that have sex with an incubus will feel even more pleasure. Although incubi are very similar to veela as they are both creatures of lust, it is a common misconception that incubi are the male versions of veela. Incubi do not possess the veela's Allure, and being an incubi is hereditary like being a veela is."

"In respect to the law, it is surprisingly rather kind to incubi, despite them being magical creatures. In the early 18th century the Lord Selwyn's son was an incubus, and as such he used his political power to pass legislation in the Wizengamot that would make his son's status as an incubus much more comfortable. Incubi are eligible for multiple marriages, as they often find that just one woman is not enough to sate their hunger.

"I understand this can come as a bit of a shock," said Mr Clarke gently, well aware of what must be going through Lily's head, "If you feel that you need some time to process it, there isn't anything else about incubi that you might need to know. I can give you a list of books on incubi and you can return home."

"I think…" began Lily, looking slightly dazed, "I think that might be… might be best." She rose and staggered towards the door.

"Mrs Potter!" called out Mr Clarke, reaching over the desk with a piece of paper in his hand, "The list of books."

Lily smiled weakly at him and apologised before thanking him for his time and leaving. She walked back down the corridor and into the reception area before promptly being mobbed by the crowd of journalists that were waiting there.

"Mrs Potte-"

"Mrs Potter!"

"Mrs Potter is it true that your son defeated You-Know-Who?"

"Mrs Potter, where is Harry now?"

"Mrs Potter, why are you in the department of Magical Creatures?"

"No… no comment." She stuttered, blinded by the flashing lights of the cameras that were being shoved in her face. A small part of her brain realised that the day's papers must have been released, but she was so focused on making it to the floo that she didn't really think about it.

After managing to break through the crowds, she made it to the floo on the other side of the reception area. She gathered a handful of the green powder before intoning "P-Potter Manor!" in a shaky voice and being whisked away.

Lily sat in the armchair in her son's nursery at Potter Manor. Believing the location too obvious, she and James had relocated to James's parents' cottage in Godric's Hollow when they went into hiding. A whole lot of good that had done them. Lily watched her infant son sleeping peacefully in his cot, totally unaware that on this day, his father had died and he had become the most famous person in Magical Britain for it.

"Oh Harry," she whispered, tears pricking at her eyes, "What's going on?"

I'll update this fic sporadically, don't expect any kind of schedule.