The Green and the Gray is a 2004 novel by American writer Timothy Zahn.
Plot introduction
[edit]A young couple, still sorting out life together, are given custody of a girl at gunpoint. As they grow in their desire to help and protect the girl, they find themselves in an increasingly complex and dangerous situation.
Thematic elements
[edit]The novel features two thematic elements which are common in science fiction. One is the conflict between machine technology and biological science. The other is the idea that there is a secret war between two factions which is being fought on Earth, with most people completely unaware of it.