In 2007, Christopher Hitchens, Richard Dawkins, Sam Harris, and Daniel Dennett filmed a landmark discussion about modern atheism. The video went viral. Now in audiobook for the first time, the transcript of their conversation is illuminated by new essays from three of the original participants and an introduction by Stephen Fry.

At the dawn of the new atheist movement, the thinkers who became known as "the four horsemen", the heralds of religion's unraveling - Christopher Hitchens, Richard Dawkins, Sam Harris, and Daniel Dennett - sat down together over cocktails. What followed was a rigorous, pathbreaking, and enthralling exchange that has been viewed millions of times since it was first posted on YouTube. This is intellectual inquiry at its best: exhilarating, funny, and unpredictable, sincere and probing, reminding us just how varied and colorful the threads of modern atheism are.

Here is the transcript of that conversation, in audiobook for the first time, augmented by material from the living participants: Dawkins, Harris, and Dennett. These new essays, introduced by Stephen Fry, mark the evolution of their thinking and highlight particularly resonant aspects of this epic exchange. Each man contends with the most fundamental questions of human existence while challenging the others to articulate their own stance on God and religion, cultural criticism, spirituality, debate with people of faith, and the components of a truly ethical life.

Read by Richard Dawkins, Sam Harris, Daniel C. Dennett, Christopher Hitchens, and Stephen Fry.

Advance praise for The Four Horsemen:

"The full, electrifying transcript of the one and only conversation between the quartet of luminaries dubbed the 'four horsemen' of the New Atheism, which took place in Washington, D.C., in 2007. Among the vast range of ideas and questions they discuss: Is it ever possible to win a war of ideas? Is spirituality the preserve of the religious? And, are there any truths you would rather not know?" (The Bookseller, UK)

"If thinking were a sport, these four would be national superstars - and reading The Four Horsemen feels like having a front-row seat at the all-star game. This is more than a book about atheism and religion - it's a lesson in how to use our intellect to cut through the haze of delusion and misconception inherent in any human society." (Tim Urban, writer of Wait but Why?)