First Man

Commandant Michel de Palma, known by his colleagues as ''the Baron'', has chosen early retirement and plans to travel the world. But he is dragged back into the force when a case that has haunted him for a decade erupts once more.

Resurfacing from Le Guen''s Cave, a prehistoric grotto thirty-eight metres below sea level outside Marseilles, France, an experienced diver mysteriously gets into diffic...