On 11 August 1676, a 31-year-old nun was found on the floor of her convent cell, her face doused in ink, clutching a note scrawled in an unintelligible mix of symbols and letters. The sister ...

They spark both fear and fascination. Now, an ancient piece of writing, known as the 1676 devil letter written by a possessed nun, has been translated to shed light on a chilling chapter of history.