From science fiction legend Cixin Liu, the New York Times bestselling and award-winning author of The Three-Body Problem, comes a vision of the future that reads "like Ursula K Le Guin rewriting The Lord of the Flies for the quantum age." (NPR).

In those days, Earth was a planet in space.
In those days, Beijing was a city on Earth.
On this night, history as known to humanity came to an end.

Eight light years away, a star has died, creating a supernova event that showers Earth in deadly levels of radiation. Within a year, everyone over the age of thirteen will die.

And so the countdown begins. Parents apprentice their children and try to pass on the knowledge needed to keep the world running.

But when the world is theirs, the last generation may not want to continue the legacy left to them. And in shaping the future however they want, will the children usher in an era of bright beginnings or final mistakes?

"This audacious and ultimately optimistic early work will give Liu's English-reading fans a glimpse at his evolution as a writer and give any speculative fiction reader food for deep thought." -- Shelf Awareness

At the Publisher's request, this title is being sold without Digital Rights Management Software (DRM) applied.

• We started tracking this book on January 3, 2019.
• This book was $14.99 when we started tracking it.
• The price of this book has changed 7 times in the past 2,514 days.
• The current price of this book is $2.99 last checked 3 hours ago.
• The lowest price to date was $2.99 last reached on November 20, 2025.
• This book has been $2.99 2 times since we started tracking it.
• The highest price to date was $14.99 last reached on January 3, 2019.
• This book has been $14.99 one time since we started tracking it.
• This book is currently at its lowest price since we started tracking it.

• Science Fiction & FantasyScience FictionHard Science Fiction

• Publication Date: October 22, 2019
• Text-to-Speech: Disabled
• Lending: Disabled
• Print Length: 344 Pages
• File Size: 40 KB