"A Risk agent novel" - cover.

Entrepreneur John Knox is a former government contractor trained in kidnapping extraction, surveillance, and delicate negotiations. No stranger to international dealings, Knox is understandably thrown when David "Sarge" Dulwich, his sometime employer at the private security firm Rutherford Risk, hands him a recent photo of himself engaged in a possibly illegal gray-market art sale. Dulwich is smart: he uses the photo to pressure Knox into brokering the sale of an ancient relic, all to gain five minutes with the buyer. With Grace Chu, the brilliant numbers woman and computer geek, Knox goes on to navigate a murky operation in Istanbul, a mysterious city located on two continents, where East meets West and Islam meets Christianity.