The Islamic State inspired a wave of true believers to travel to Syria from Europe, America, and the Middle East, in numbers not seen since the Crusades. What compelled tens of thousands of men and women to leave comfortable, privileged lives to join a death cult in the desert? Steven Pinker called Graeme Wood’s analysis of this phenomenon in The Atlantic “fascinating, terrifying, occasionally blackly humorous.” In The Way of the Strangers, Wood uses character study, analysis, and original reporting to take us further into the Islamic State’s apocalyptic vision.

Though the Islamic State has lost territory, it threatens to rise again, and its followers are plotting on every continent. From the streets of Cairo to the mosques of London, Wood meets with supporters, recruiters, and scholars and asks them why they believe that killing and dying for this cause is the only path to Paradise. With a new afterword, The Way of the Strangers uncovers the theology and emotional appeal of this resilient group and explores its idiosyncratic, coherent approach to Islam. Just as Lawrence Wright’s The Looming Tower explained the rise of Al Qaida, this book will shape our understanding of a new and deadlier generation of terrorists.