The Friendly Killers by S. M. Tenneshaw

In a war-ravaged future where humanity is locked in a bleak stalemate with the alien Kel, the real enemy may be hiding in plain sight. Planets have been shattered, travel crippled, and human society hardened by compulsory conditioning designed to keep fear, grief, and rebellion under control. But when Agent Mark Traynor arrives on the bastion world of Rizal with only six hours before he is silenced or reconditioned, he discovers a deeper threat: a secret network distributing forbidden "thrill-mills," devices that restore raw sensation and emotion to the conditioned. Traynor's investigation leads him into a maze of deception, where officials seem unnaturally controlled and a mysterious woman named Celeste may be both lure and key. As he forces the truth into the open, he exposes a conspiracy reaching into military and administrative ranks, triggering arrests, betrayals, and a violent escape. Pursued by the ruthless Alfred Kruze, Traynor is drawn into an even stranger encounter with Celeste in an alien Kel environment, where questions of loyalty, identity, and conditioning become as dangerous as war itself. This edition has been fully restored with modern typesetting, custom cover design.