In order to distract a young boy whose mother is giving birth in the next room, Dr Michel de Nostradame, aka Nostradamus, performs a slideshow, (using a picture thrower recently invented by his good friend Leonardo) describing the end of the world. He admits that he wrote all his prophecies as obscurely as possible simply because he knows people in the future will are confused by them.
All this comes in the first few pages, the body of the book is concerned with the story he tells. It concerns an everyman figure who is worried that his daughter might not survive a nuclear war and is persuaded to sign a VERY unusual contract in order to purchase the only radiation suit in the world that would actually protect the wearer properly. After he has bought it for her, Morrow shows his penchant for irony by starting WW3 before he can get it home to her.
He spends most of the book finding out why the war happened and being put on trial for complicity in nuclear armageddon by the ghosts of those who were never born.
This was the first Morrow book I ever read, and it convinced me to pick up all his other books as soon as I see them. It is highly imaginative, exceedingly well written, and unlike much of his other work, not unkind to God.