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Unknown to the Dark Lord he had made a flawed decision and in his arrogant belief that he was unstoppable he had had given his greatest enemies that which they needed most. His mistake would allow them the time and eventually the tools to become more then he himself would ever be able to handle. Neville Longbottom would be a potent wizard and a steadfast and loyal friend who would have fought tooth and nail for that which he believed in. Protected by the most potent magic to ever exist his mere touch would incinerate his greatest adversary. Unfortunately without his mother and father there to shield him from an overbearing grandmother the boy would be cowed and lack confidence in his ability. But that in itself would never break the boy's spirit.

Likewise ,Harry Potter, the second child who was marked to die that same night, was spared a life of a house elf. Two boys with indomitable wills that would never be broken. But had the dark lord destroyed the Potter family on that Halloween night much the same would have happened. He would have been reduced to shade stuck between the cross roads of life and the beyond. One child's life would have been destroyed and the other's family would be attacked. Had the Dark lord been driven away by the sacrifice of Lily Potter the young heir to the family name would have been magically orphaned. A fate that would have left him whisked away from the magical world and left in the hands of his abusive muggle relatives. Ten years of abuse would have weakened the boy to the point where only a series of lucky circumstance events stringed together would lead to the Dark Lord's downfall. He, like Neville, would have never stopped fighting for what he believed was right but he would lack the skills, upbringing, and support to challenge Riddle on his own.

Instead, a week following the disappearance of Voldemort the Lestrange family and Barty Crouch Jr. launched and attack on the Potter residence expecting a blood traitor and his mudblood whore to be stupidly celebrating the Dark Lord's downfall like the rest of the wizarding world. They were very much mistaken. Inside the house guarded by a Fidelius charm were three of the marauders and a charms mistress who were offering thanks and remembrance to their lost friends. It was also the misfortune of the last marauder, a traitorous rat, that the four adults inside the home were the only four apart from Wormtail who knew the secret. Or so they thought. Needless to say when the perimeter ward informed the young couple that four people were approaching the house and their own secret keeper was unaccounted for, they knew what had happened.

http://www.fanfiction.net/s/6980398/1/