How should I introduce my teenagers to "Atlas Shrugged" and Objectivism?

I'd like to introduce my teenagers to Ayn Rand's novel "Atlas Shrugged," as well as to the principles of her philosophy of Objectivism. How should I do that? My concern is that I'll bungle it up and bore them to death or succeed too well and convert them into Objectivist jerks for the next ten years. What's a rational approach for parents?