Foucault's_Pendulum - Umberto Eco

Reminded me of two books "Alice in wonderland" and "Da Vinci Code", the plot is about the creation of a mystical book by three authors. While in the creation process, the book affects the author's lives profoundly.
I did not enjoy the tons of mystical, Templars and RosiCrucians literature cut-pasted in the book,
never the less I did enjoy the creative process, and the final plot, but that is aprox less than 10% of the whole book.