At the End of the Universe

This book is a three-body fan fiction. It tells the story of Cheng Xin, Guan Yifan, and Sophon who walked out of the small universe and came to the big universe hundreds of millions of years later... The big universe has long been changed, and even the vicissitudes of life cannot compare with this change. Is the current universe a relic of an interstellar battle or an undiscovered pastoral? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.