'Jenna is having a hard time. Her parents are fighting all the time, her best friend Mika has betrayed her, and the cute guy on the train doesn't even know she exists. She feels like a volcano, ready to blow. As her problems swirl around her, Jenna records her thoughts and feelings in a tatty exercise book she finds on the bus. But it's not just any old book -- it's on a journey and Jenna is only its latest stop.' (Publisher's blurb)