"The Name of the Rose" by Umberto Eco

Seven Deaths in Seven Days and Nights of Apocalyptic Terror.

The year is 1327. The place is a wealthy Italian abbey full of Franciscan monks. And the crimes committed here are beyond the wildest imaginings. It will be the task of English Brother William of Baskerville to decipher secret symbols and dig into the eerie labyrinth of abbey life to unravel the mystery. His tools: the logic of Aristotle, the theology of Aquinas, the empirical insights of Roger Bacon -- all sharpened to a glistening edge by wry humor and a ferocious curiosity. His enemy: a murderer with the awesome features of the Antichrist...