A rumor found its way into romantic and Gothic literature during the 18th and 19th centuries that involved Venice’s world renowned Murano glass. Fiction authors claimed it was so pure that if it came into contact with a poison impurity, the glass would break. One of the most popular Gothic authors to extoll this supposed virtue of Murano glass was Ann Radcliffe in her best-selling novel The Mysteries of Udolpho. The Gothic novel was published in 1794 and in its pages Emily, t