It is the year 1327. Franciscans in an Italian abbey are suspected of heresy, but Brother William of Baskerville’s investigation is suddenly overshadowed by seven bizarre deaths.
El Nom De La Rosa

Umberto Eco: El Nom De La Rosa (Catalan language, 1985, Edicions 62)
572 pages
Catalan language
Published March 8, 1985 by Edicions 62.