Sentence:  At a side door, reclined on a couch, two guards of the haram, with their naked swords grasped in their hands, and features, <WSD>fiendishly</WSD> contorted between sleep and dissolution, seemed to menace death to any who should venture to approach. 
Meaning of the word marked with <WSD> tags:  In a fiendish manner; evilly, wickedly.