Guilty Body

Three months ago, the worst thing I could have imagined happened... my twin disappeared. It was just a week before summer break, before three months of bliss away from school. We were at a party, I was doing something I wasn't supposed to, while he was sneeking of with his girlfriend. In the middle of the night, people at the party started rushing toward the street where my brother's car had crashed into the tree line near the neighboring forest. His girlfriend was in the passenger seat, but he was nowhere to be found. We spent weeks looking for him, only to turn up with nothing. My father sent me to my mum's place in London for the summer, but now, school is starting up again and I have to face the fact that my other half may be gone for good. I have to face the one person I promised my brother I would stay away from, the person I was with when he disappeared, my biggest mistake, our neighbor and his bestfriend.
A couple of weeks in, the police receive an anonymous tip about my missing brother than turns up to be his cellphone... a lot of new information is discovered and I realise I need to find him, alive or dead...