What is the passage about?

answer:

The Passage is a novel by Justin Cronin, published in 2010 by Ballantine Books, a division of Random House, Inc., New York. The Passage debuted at #3 on the New York Times hardcover fiction best seller list, and remained on the list for seven additional weeks.[1] It is the first novel of a completed trilogy; the second book The Twelve was released in 2012, and the third book The City of Mirrors released in 2016.[2] The novel and its sequels were to be adapted into a film trilogy; however, they were instead developed into a Fox television series.[3]