Grady James Grady 
Condor in the Stacks [EPUB ebook] 

Vin, a name of convenience for the agent known as Condor, has been released from psychiatric care and is back to work. The only problem is that his work now entails the mundane job of sorting through books meant for the incinerator instead of the high-adrenaline rush of being a covert spy for the CIA. Struggling to separate hallucinations from reality, Condor attempts to immerse himself in the task at hand, but his acute sense of danger soon overwhelms him. While wandering the labyrinth of the Library of Congress’s subterranean tunnels, he encounters a damsel in distress. Someone is following her, and Condor can’t resist the lure of covert ops or placing his own life in jeopardy.