Professor Lavalle, at the Sorbonne, suggests his History students a research work on the French Revolution. They will be able to use a chronovisor, a kind of TV that makes it possible to see scenes from the past. During his research, the young protagonist falls in love with a young woman who is about to be guillotined. With the help of a friend, they manage to save her by bringing her to the future.Manuel Alfonseca has published more than 50 books,...