The jet was a solid eighteen-inch column a pillar of brown mud & yellow gravel & sea water that beat against the steel plates of the hull with a hollow drumming roar. In the few seconds since the explosion the cyclone was already half-filled with a slimy shifting porridge that rushed from wall to wall with the movement of the ship. It was like some monstrous jellyfish which each second gathered weight & strength. The Van Der Byl Diamond Company willed by its founder to his son Benedict his sister Tracey & their estranged foster-brother Johnny Lance turns out to be a bequest of hatred. For it is couched in such terms as to offer Benedict the instrument of destruction of his bitterest rival. Destroy Johnny is the old mans implacable message. & so consumed with envy for Johnny Benedict sets out in ruthless pursuit of this goal -- & Johnny is plunged into a maelstrom of greed vengeance & murder.. .