The forgotten Weasley

This is Sophie Weasley. She was born after Ron but before Ginny. She was born on the thirty first of July. They thought of her as a squib with no magic. However she is much more. On her eleventh birthday she receives three letters from three different schools. While going to a different school than her family help her at all?
{disclaimer: I do not own Harry Potter or it's characters. I however own Sophie Weasley and the plot.