|summary=It’s the phone call in the middle of the night that everyone dreads – your sister is missing and is most probably dead. That is the call that Kate receives one night telling her that her sister Anya has disappeared in Mexico after going off on a diving trip. Things don’t add up though. Anya is too experienced at diving so maybe something more sinister has occurred. Will Kate get anyone to believe her though and will there be time to rescue Anya before it really is too late?
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Kate Palmer’s life has been blighted with tragedy. Her sister Emily died at the age of thirteen in a freak accident. Her parents could not cope with the grief and subsequently divorced leading to her mother living in America and her father suffering a breakdown. Years later, she is married to Rob and struggling to cope with being a new mother to two month old Mathias. Kate’s always been the sensible one whereas her younger sister, Anya, has always had a tendency to run away from her troubles and has never managed to settle down. Therefore, it should come as no surprise to Kate that Anya has taken off once again and has gone diving in Mexico. That would have been OK but Anya is now missing.