Fools Gamble [first edition]

"Hazeldene was a clever, handsome young man who lived in Beirut and traveled around the storied Middle East - Baghdad, Istanbul, Damascus - selling perfectly respectable office supplies for a perfectly respectable firm. It said so on his passport. Actually he was a secret agent. But nothing sinister had happened - until the stranger began to show up everywhere he went. But even that did not unnerve him. Until at last the stranger showed up dead - a corpse in Hazeldene's very own refrigerator.".