A hazardous expedition to a remote Pacific atoll leads to a violent confrontation far from civilization… The seas and its secrets always fascinated the Trevelyan brothers, and it was on an expedition to a remote Pacific atoll that Mark died – a natural death, Mike is told. Though there was no love lost between the brothers, the circumstances surrounding Mark’s death are suspicious enough to force Mike to investigate – even without the series of violent attacks on him that followed. There are just two clues – a notebook in code and a lump of rock – enough to trigger off a hazardous expedition, and a violent confrontation far from civilization…