Tunnel Without Light

The enemy is smart and cold-blooded. In his arsenal are logic, persistence, and precise calculation. He is sure he knows how to beat us in this clash. But the enemy doesn’t account for one thing: in his path stand super-professionals of their craft—people of risk, honor, and unbending will—the Soviet counterintelligence agents.

A signal arrives from Soviet residency in the West: data has leaked from a closed research institute working on developments in microbiology and virology. A group of KGB Major Mikhail Koltsov is tasked with identifying and neutralizing the “mole.” The operatives are convinced that, formally, all instructions for protecting state secrets at the enterprise are being followed. Then how does the spy manage to pass information? At last, the major finds a solid lead. To confirm that this is indeed the very channel, Koltsov bets his own life…