 In "The Moray's Keep", shipping magnate Xénophon Hamadryas offers a $6000 prize to the makers of a submarine innovation in order to find his sunken ship "Le Discret" off the French Mediterranean coast.The Count of Champignac's mini-sub invention is so spectacular that the competition must resort to sabotage.A chain of secrets need to be exposed while the maritime criminal John "the Moray" Helena lurks in the deep.