A Plague of Demons and Other Stories
by Keith Laumer

Description:
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.

An alien probe has randomly selected a human to test to his limits and find how serious an opponent the human race might be. They have picked the wrong man. Test to Destruction.

A ship is lost in action and only one has survived the alien attack. He alone knows the secret that can stop the aliens in their tracks, but his own side is convinced he is a traitor or worse; he is about to face his ignominious end, his End as a Hero.

One officer has kept a lonely vigil on an isolated planet for years, watching for the alien enemy, forgotten by the bureaucracy that sent him there--then the enemy arrived, and the alarm signal had to be sent, in spite of the alien ship looming over the colony. Thunderhead.

Includes one full-length novel, five short novels, and more in an action-packed volume of the very best by the master of interstellar adventure.