The ninth title in this best-selling series. Mel Beeby is sent on an urgent cosmic mission to a hellhole school on Earth. But it's her old school, and she has to save her best friends. Worse yet, this could all be her fault...!Mel Beeby is thrilled to be sent on an urgent angelic mission back to her old school. She always jokes about her old comprehensive being a hellhole, but when she arrives she's shocked to see this is literally the case!Graffiti, disobedience, disillusionment, bad behaviour and bad grades aside, this school has problems. There are invisible beasts of hell roaming the corridors, and the students have completely lost sight of their dreams. Mel loves being back home, and can't wait to see her family and friends again. But when she finally sees her three best friends, she's horrified to see how much they've changed. One has almost TOTALLY gone over to the Dark Powers.Worse still, this whole nightmare might all be her fault...