An alien ship invades the Solar System for the first time in recorded history. The Earth Cruiser Agamemnon is destroyed in combat, and the search for answers begins. The veteran crew of Borag gets the assignment, and the race is on. Sgt. Starn of Red Company must visit the disaster site, perform a search and rescue mission, and return to Mars alive. What kind of technology could destroy an Earth warship so easily? Why is a single life-pod found floating, transponder pinging away—with no one aboard? Most important of all, what is the prowling alien super-ship going to do next? Find out in the thrilling fourth book of the Red Company Invasion.