Frustrated at school and haunted by her mothers disappearance, Kara only feels truly alive when she is sailing the oceans waves. But when she and Felix make a startling discovery on the beach, it sets in motion a dramatic chain of events. And soon they must make an impossible choice. Risk their own lives or face losing everything .. Paperback , 265 pages Published May 2012 by Oxford University Press, USA (first published April 19th 2012)