Fourteen year-old Navy Cadet Andrew Collins enrols in a SCUBA diving course on the Great Barrier Reef to impress Muriel, the girl of his dreams. There's only one problem: Andrew is terrified of diving, not to mention the sharks, eels, and every other dangerous critter inhabiting the Coral Sea. Despite his fears, Andrew inadvertently stumbles onto an old family mystery: the mysterious disappearance of his grandfather, lost at sea many years before. The deeper they delve into the mystery the deeper they are caught in a deadly web of lies and danger. Andrew must face some agonizing choices and do battle with his worst nightmares. Read along and find out what happens to Andrew and Muriel in this rip-roaring adventure on the high seas.