When John Bravais was sent on a secret mission to observe a war in North Africa he found out more than it was safe for him to know - even after he had secretly been surgically transformed so that he was as strong as a Bolo tank, and nearly as tough: Wolf-like aliens, invisible to the ordinary eye, were harvesting the brains of the fallen fighters! Bravais might have become the ultimate warrior, but still he was only one man against A Plague of Demons. This complete novel, plus five short novels and more in a huge volume by the master of interstellar action and adventure.
Keith Laumer was a Captain in the US Air Force and later an officer in the Diplomatic Corps, serving all over the world, giving him a solid background both for his fast-moving Adventure stories and his satirical comedies of Retief, the galaxy's only two-fisted diplomat. He was renowned as one of the top writers of SF adventure.