: The story centers on the return of the enigmatic "Greys," revealing their role in human history and Earth's place in a galaxy under siege.
: Written by a former U.S. Air Force officer, the book is noted for its "tactical realism" and "engineering-grounded" science. : The story centers on the return of
: Readers generally find the book to be a fast-moving space opera with detailed battle scenes and "skin of the teeth" escapes. Critical Reception : The story centers on the return of