A book that reads in one and planne a little after finishing it! An original subject, with the central character, the "gifted geniuses of" strong and sensitive character, who despite his over-capacity does not dictate his actions and his life as he sees fit. In short, a "reluctant hero", but which remains far from clichés, with psychological reasoning, and a particular context in which the freedoms and human laws no longer apply because really everything is allowed to save men an impending alien invasion .... The end is satisfactory, but I was happy to see that there was a sequel to prolong a little the enthusiasm :)