(Sky News) Three rare books dating from the 16th and 17th centuries have been found by scientists to be covered in a deadly poison.
The discovery in a university library has echoes of the novel and film The Name Of The Rose, which sees a string of monks in a 14th-century Italian monastery killed off by the toxic pages of a forbidden manuscript.
X-ray analysis of the books held by the University of Southern Denmark revealed a large concentration of arsenic on the covers.
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