Well, Lulu's been known to change policies, margins, and even the cover prices on my books without telling me, so I guess I should sniff around and see if they've changed their ISBN policy. My understanding is that if your Lulu book is to have an ISBN at all, it needs to be purchased out of Lulu's ISBN book, but I would love to be wrong about that.

Foucault's Pendulum has a certain tongue-in-cheek quality running all through it, or maybe I just naturally giggle at that sort of thing. He certainly laid it on with a trowel. Much fun; not a lot of heft compared to his other material.