Falling Clouds and Solitary Duck

This is a novel that combines the beauty of nature (ecological literature) with science fiction literature. The purpose is to call on humans to protect nature and protect my mother earth. The plot of the story is very simple. When Zhang Yuling and her party were recovering the bodies of soldiers who died fighting aliens in the forest, they rescued a nest of young wild ducks (lonely ducks). Later, these wild ducks became Zhang Yuling and her party's guides out of the maze of time and space...