Anónimo

When Dal Timgar, of all his medical class, was denied assignment to a general practice patrol ship going out from Hospital Earth to serve the medical needs of the Galactic Confederation, it seemed to him that his eight years of study in the great medical center of the galaxy had ended in failure. He had worked hard and stood at the head of his class, but Dal was different from his medical colleagues in one important way: he was the first son of an alien race to attempt to become a qualified physician of Hospital Earth.

Paris in 1895: Alfred Dreyfus, a young Jewish officer, has just been convicted of treason, sentenced to life imprisonment at Devil's Island, and stripped of his rank in front of a baying crowd of 20,000. Among the witnesses to his humiliation is Georges Picquart, the ambitious, intellectual, recently promoted head of the counterespionage agency that Dreyfus had passed secrets to the Germans. At first, Picquart firmly believes in Dreyfus' guilt. But it is not long after Dreyfus is delivered to his desolate prison that Picquart stumbles on information that leads him to suspect that there is still a spy at large in the French military.