The consensus was that he'd gone over the top and set the bar of suspension of disbelief a bit too high. We spent a pleasant hour (with Bill facilitating, to break him in for next year) poking fun at the inaccuracies, implausibilities and downright unbelievabilities in the plot. (Bill did some research and found that not only do the four Bernini angels not point at each other, but that the four churches are not arranged in a cruciform.) We also noted the seeming need through the ages, both to belong to some secret society of some sort, and to uncover secrets and to hypothesize hidden conspiracies. Those who read the book on tape didn't get to see the pretty ambigrams (and couldn't see the ones in the printed books anyway). Pam promised to make enlargements of them.