A Plague of Demons : & Other Stories
by Keith Laumer
Baen Paperback ISBN/ITEM#: 0743499069
Date: 01 May, 2005 List Price $7.99 Amazon US / Amazon UK /
From Back Cover:
When John Bravais went on a secret mission to observe a war in North Africa, he found out more than it was safe to know. Lupine-like aliens were harvesting the brains of the fallen, for an unknown purpose. And they were invisible to ordinary men. Bravais had been surgically transformed so hat he was as strong as a tank and nearly as invulnerable, but he was only one man against thousands of aliens, against A Plague of Demons.