Author's note:
This idea has been in my head for some time and I decided to write it

This is a crossover of Harry Potter series and Fate/stay Night, I hope you like it!
so here it goes!

Disclaimer: I don't own Harry Potter or Fate/stay night... I wish I do T.T

Prologue: The Night it all started

Story Start!

The day begun just like how it always was, with James Potter trying to impress his wife, Lily Potter, and Lily ignoring his husband in favor of their firstborn son, Harry.

The day continued just like how it was before but what they all did not know, was that it was going to end on a very different note.

Just after they finished dinner and Lily was about to tuck little Harry in his crib, They both felt the wards in their house fall.

"Lily, take Harry and go! It's him! Go! Run! I'll hold him off!"- James shouted as he sprinted towards the door and took his wand to prepare to fight the Dark Lord.

As soon as she felt the Fidelius fall, Lily tried to apparate with her baby but found herself unable to do so because of anti- apparition wards

'Why?, we were perfectly safe!, Peter!, that traitor!, What should I do?, The ritual hasn't been tested yet!' - Finding herself without options and beginning to get desperate to save her son, Lily put little Harry in the middle of a magic circle 'Please let this work!'- Lily thought as she focused her magic and started to chant

"I command thee,Thou shalt come to my side, Thy sword shalt control my fate, Abiding by the Holy Grail's haven, If thou accedest to this will and reason, then Answer me, The oath set forth here, I am the embodiment of good in the eternal world, I am the disposer of all that is evil in the eternal world, Thee the seven heavens that bear the great Trinity, Come forth from the circle of constraint"- Lily stopped and nick a little of Harry's blood letting it fall to the circle, She could already hear the Dark Lord was already trying to undo the spells in the door that she hurriedly put, letting her know that her husband has already fallen, she pushed that thought aside, James wouldn't want her to do this, He thought that it was too dangerous, they found the tome that she was using in the Potter's Vault, heavily warded, it was an obscure book with no title, and the contents were also vague but what it clearly said was that it will summon a champion that was closer to your nature or by the reagent you have chosen, they didn't understand much of what was written because it was written in a different language but it had enough to make sure that she can cast it. Just after Harry's blood touched the circle, The Dark Lord entered.

Lily Immediately put her body between her baby and the Dark Lord

"Foolish girl, you don't have to die, Give me your son and I will allow you to live"- The Dark Lord said in a raspy tone as he pointed his wand at Lily

"Not Harry, please no don't kill him, take me, kill me instead —"- Lily shouted desperately as she continued to shield her firstborn son

"This is my last warning —"- Voldemort warned the desperate redhead

"Not Harry! Please ... have mercy ... Not Harry! Please — I'll do anything..."- Lily begged as she still shielded her son from the Dark Lord

"Avada Kedavra!"- Voldemort said as he cast the killing curse at the red-haired witch and watched her body fall limply and because of the debris that his entrance made, He didn't notice the magic circle that they hid.

"So this is the child of Prophecy?, What foolishness, as if a mere child can defeat me, now die, Avada Kedavra!"- Just as he cast the Killing Curse, Because of the raw magic present in Godric's Hollow, it forced the unfinished ritual to its completion and just as the light shone, the Killing Curse rebounded.

The last thing that the most Feared Dark Lord saw was the Green light of the Rebounded Avada Kedavra.

Albus Dumbledore was in his office at Hogwarts, School of Witchcraft and Wizardry, when one of his little trinkets go off.

It was normal that every now and then that his alarm will go off, as they remind him of what he still needed to so, and because of the ongoing war, there was a lot of things to do, but what alarmed him greatly was that the trinket that rang was the one he always wished would never ring but it continued to go off signifying that the wards at Godric's Hollow had fallen.

He quickly tried to apparate but instead of appearing inside the Godric's Hollow, He found himself a mile away, because of the distance, he quickly deduced that an anti-apparition ward had been set up and traveled by fire using Fawkes inside the Godric's Hollow.

Dumbledore prepared himself for the worst situation and unholstered his Elder wand, in case Voldemort or his Death Eaters were still lingering but as he appeared in his intended destination, feeling no one was around the vicinity he lowered his wand but kept it in his hands in case of emergency.

Seeing James body on the floor,his beautiful hazel eyes glassy because of the killing curse, made the headmaster heart heavy with grief

'Such a tragic end, No one this young should suffer what you have suffered.'-Dumbledore thought as he close his previous Headboy's eyes

After conjuring a blanket with embroidery to cover James body for the mean time, He steeled himself for what he was sure to come

This time he found Lily's body in the middle of a room full of Debris, along with a baby who was crying, seeing that the boy was still alive, Albus quickly made his way towards the crying boy but he stopped mere inches before him.

'The one with the power to vanquish the Dark Lord approaches ... born to those who have thrice defied him, born as the seventh month dies ... and the Dark Lord will mark him as his equal, but he will have power the Dark Lord knows not ... and either must die at the hand of the other for neither can live while the other survives ... the one with the power to vanquish the Dark Lord will be born as the seventh month dies ...' -The prophecy continued to echo through the headmaster head as he processed what happened moments ago.

'The prophecy has finally come to pass..., the Dark Lord will mark him as his equal, the lightning bolt scar...' - This thought ran through the headmasters head as he carried and tried to console the now-orphaned Harry.

And TADA!, What do you guys think?, Is it good, or is it bad?, No flamers please although I do accept constructive criticism

The changes will really happen in the next chapter where there will be a time skip, I have already decided on which servant will Harry summon but I want your opinions on how it will happpen, please leave a review!