Hey everybody this is a new story of mine I hope you all like it!

Disclaimer: I do not own anything Harry Potter sadly.

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A choice to change all time!

She was given a choice, a chance to go back and change it all before it happened or stay with her friends and watch the world fall apart. There was only one option really. She had to go back, 20 years into the past to 1975 to the marauders 5th year at Hogwarts. There she would stop him before he reached his full power. There she would give her friends the lives they disserved. With this in mind Katrina Sparks packed her trunk, caged her owl, left a letter for each of her friends and made her way down the stair of 12 Grimmland place, she toke the flew to Dumbledore's office, hugged him and McGonagall goodbye, toke a note from Dumbledore and recited a spell. A spell not used in centuries. Then with a blink of an eye 15 year old Katrina Sparks no longer existed in 1995 but 20 years in the past in 1975. With a blink of an eye the world's last chance now laid with a 15 year old girl. The world now lay on the shoulders of the young girl who was meant to save from the start.

The first thing Katrina Sparks thought when she opened her eyes was "What have I gotten myself into?" She lay on the floor of Dumbledore's office staring straight at the wand of Albus Dumbledore.

"Who are you?" he asked eyes narrowed. "Well he's nice. But I guess I would be suspicious to if a random teenage girl all of a sudden appeared in my office" Katrina thought.

"Professor I'm Katrina Sparks I have a letter for you." She said lamely holding up the paper. He toke the letter opening and reading it without moving his wand. After a few minutes he moved his wand stepping back. Katrina got up dusting off her pants and shirt.

"I am sorry Miss. Sparks but in these times one cannot be too careful." Katrina nodded.

"So professor what's the date? All I know is I am sometime in 1975." Dumbledore nodded.

"Today is September 1st you've arrived just in time for the opening feast, there you will be sorted." He explained motioning her to follow him. Katrina quickly followed transfiguring her clothes into school robes. As they entered the great hall Katrina noticed everyone already seated but for the nervous first years waiting to be sorted. Katrina followed Dumbledore up to the teachers table and stood of to the side as the sorting commenced she grinned when Tonks was sorted in to Hufflepuff. When finished Dumbledore stood.

"Welcome old and new students to Hogwarts, today we have a transfer student joining use Miss. Sparks will be joining the 5th years. She will be sorted now" he said motioning Katrina forward.

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R&R this is just a preview if I get enough reviews I'll continue this.