( Together, Book 2) Remember, I'm Right Here.

Anastasia had a great summer, but like all good things it most come to an end. Soon she is back at Hogwarts for her fourth year. But strange things begen to happen. She hears a strange voice that no one but her brother and herself can hear, students being turned to stone left and right, strange new feeling arise. Don't miss the next exciting installment of the Together series.

Ok not my best description, I apologize.
This is book two in the Together series. You probably want to go check out the fist book before you read this;)