Presenting a remarkable set of previously unpublished papers, this book concerns the bewitchment, possession and exorcism of two seventeenth-century nuns living in exile in an English convent in the Spanish Netherlands. The two women left behind an extensive set of personal writing that reveals unprecedented detail about their devotional lives and spiritual states before, during and after exorcism. Unlike other similar cases, here the women write for themselves; for the first time in 350 years this book allows their voices - and their silences - to resound in all their vibrancy. An extensive introduction discusses the politics of piety and possession at a time when exorcism had become increasingly contentious, amidst conflicting claims for rival church reform. The book includes both autobiographical and biographical material, written by the nuns and about them, and casting new light on processes of female self-writing at just the time when the 'modern subject' is often said to have emerged.