Instruct: Classify the given Amazon customer review as either counterfactual or not counterfactual.
Query: Creating a story is challenging given the volume of materials available, as well as the firsthand experience of many who would be drawn to the genre, but the author excels in capturing the intimacy and uncertainty of the spy trade, personalizing the foreign terrain of Pakistan, and, most importantly, unrelentingly cranking up the tension with each page.