It depends on the atheist. If he can enjoy a story with the viewpoints of a Chinese Christian and an American agnostic, he may like it. If any and all mention of the gospel offends him, he won't like it. But sometimes people really surprise me, and there's no real down side. I think it's worth a try giving it to him.
Randy Alcorn (@randyalcorn) is the author of over sixty books and the founder and director of Eternal Perspective Ministries.