For 10 points, identify this semiotician author of The Island of the Day
One work by this man features an Aristotelian metaphor machine whose functionality and purpose are explained to the protagonist by Padre Emanuele during his stay at Casale. That work sees the jesuit Caspar Wanderdrossel disappear after attempting to walk underwater to reach the titular locale. Another novel deals with Simone Simonini's invention of the Protocols of the Elders of Zion(*) conspiracy, themes similar to those of an earlier work. That work has characters such as the sinister Colonel Aglie, the Brazilian former flame Amparo, and the computer Abouelafia used to connect seemingly unrelated facts to form a vast Templar conspiracy theory. For 10 points, identify this semiotician author of The Island of the Day Before who created Casaubon, Belbo, and Diotallevi in Foucault's Pendulum and William of Baskerville and Adso of Melk in The Name of the Rose.
One work by this man features an Aristotelian metaphor machine whose functionality and purpose are explained to the protagonist by Padre Emanuele during his stay at Casale.
Umberto Eco