The Children of Men by P. D. James

Set in a dystopian future where mankind has become infertile, the novel centers on a history professor who becomes involved with a group of revolutionaries seeking to overthrow the oppressive government. As the world descends into chaos due to the impending extinction of the human race, a miraculous pregnancy offers a glimmer of hope. The professor must protect the pregnant woman and navigate the dangerous political landscape, while grappling with the implications of a world without children.

The 1147th greatest book of all time