Faded Memory

It is about a girl who was was killed in her past life. Sparrow winters, born into a rich family and goes to a private academy for the rich. She suddenly bumps into the hottest, handsomely but rude not of the school. His name is Ryder. He was also killed in his past life. But there was something about the two. Their teachers happen to do something evil about their past life. Sparrow keeps having dreams about her previous life. Its actually a memory but it's faded. Being curious, she wants to know more about them. Their teacher, Mr. Smith knows about his past life. What Did he do? He doesn't share it. That is a secret.