Like the majority of gentiles in Nazi-occupied Paris, architect Lucien Bernard has little empathy for the Jews. So when a rich industrialist gives him a large amount of cash to devise top secret hiding locations for Jews, Lucien struggles with the choice of risking his lifestyle for a cause he doesn’t really believe in. Ultimately he can’t withstand the task and begins creating expertly concealed hiding spaces-behind a painting, within a column, or inside a drainpipe-detecting possibilities invisible to the common eye. However when one of his clever hiding spaces fails horribly and the enormous struggling of Jews turns into extremely personal, he can no longer deny reality.

Written by an expert whose knowledge imbues every phrase, this story turns into more gripping with every life the architect tries to save.