Evidence of Space War Box Set

What if ancient astronauts really did visit Earth thousands of years ago?

“This series has it all: ancient aliens, UFOs, space battles and great characters!” Now all five books in one convenient box set!
What if ancient astronauts really did visit Earth thousands of years ago? And what if the first alien race we meet in space is actually an old, natural enemy from Earth? An enemy that hunted humans, and humans, in return, attacked on sight.