Death´s end.The Three-Body Problem III

Death´s end.The Three-Body Problem III
Earth enjoys unsprecedented prosperity due to the infusion of Trisolaran knowledge and, with the Trisolarans adopting Earth culture, some hope that the two civilizations will able to co-exist without the terrible threat of mutually assured annihilation. But peace has made humanity complacent.
Cheng Xin, an aerospace engineer from the 21st century, awakens from hibernation in this new age. She brings knowledge of a long-forgotten program dating from the start of the Trisolar Crisis, and her presence may upset the delicate balance between two worlds. Will humanity reach for the stars or die in its cradle?