Beowulf
"Grendel was the name of this grim demon
haunting the marches, marauding round the heath
and the desolate fens...”
"The hero observed that swamp-thing from hell,
the tarn-hag in all her terrible strength,
then heaved his war-sword and swung his arm:
the decorated blade came ringing
and singing on her head."
“Down there in the barrow, Beowulf the warrior
lifted his shield: the outlandish thing
writhed and convulsed and viciously
turned on the king, whose keen edged sword,
an heirloom inherited by ancient right,
was already in his hand."