An alien civilization of a dying planet is about to take over the earth. How should humans evaluate this civilization? Should they take them as foe or friend?
"This book is the science fiction collection of Liu Cixin, including The Wandering Earth, The Earth Cannon, Full-Band Blocking Interference, The Chinese Sun, Supernova Era, Taking Care of Gods, The Three-Body Problem (Abridged Version), The Three-Body Problem II: The Dark Forest ...