An earthquake in the depths of the Caribbean Sea shakes the little island of Grand Cayman, revealing sinkholes in the roads - and ghosts from the past. When AJ Bailey discovers a long hidden cavern in the reef, she may have found clues to a 34-year-old unsolved police case, but the dangerous dives to unearth the answers, could solve the mystery - or turn AJ into the next victim. A famous 16th century...