Things Are Not Always As They Seem

OotP AU - Harry Potter has found himself drawn to Ginny Weasley all year. He's wanted nothing more than to ask her out but now her father has been killed by Voldemort's snake and it doesn't seem to be the right time. Even worse the interfering marriage contract that Professor Dumbledore seems to support. Can he trust the headmaster & what is his secret located in Nurmengard Prison?