The Fifth Marauder (A Marauders Era Story) DISCONTINUED

There's a girl who lived alone her whole life. Albus Dumbldore came to offer her a place in his school of magic. She accepted and made friends with the Marauders. She became James' sister and the best friend of the others. She was the most talented witch in Hogwarts, able to master all spells and potions on the first try. People disliked her for weeks because of this. After a while, they grew to like the girl and became more friendly. Then another girl with the same abilities comes to Hogwarts in Samantha's second year. Will they be friends or at each other's throats?