Elijah appears the day after the end of Passover in Isaac's family. The prophet gives Paolo, Ethan and Aaron a mission. They have seven days to write the story. The world has come to an end and they can only leave on an indestructible device a record of how the earth originated and was destroyed. They have no limit of space. It is the two older brothers, Paolo and Ethan, who must write everything down. They cannot copy and paste any document that already exists. They have the support and help of their father, and their younger brother.At the same time, they must reconcile with their mother, Eliette, who left the family a few months ago without explanation. The days go by at breakneck speed, so on the fifth day, they must decide whether to go with their family to Jerusalem or go to the reunion with their mother. A decision that, once made, will change the rest of their lives and that of all mankind.