It's certainly rich, and the trilogy is satisfying to read, but I had to stop with his giant epics because he's just so relentlessly cruel to his characters. Every remotely sympathetic female character is going to spend at least a decade being repeatedly raped. Every ordinary man is going to have his family murdered and be enslaved. Yes the stakes might be elevated that way and for sure his chosen time period wasn't exactly kindly to those at the bottom of the social pile, but after a while it just felt gratuitous and more reflective of some pathology in Ken Follet's mind than any desire to tell a good story.