Read these lines from Beowulf.

He realized
that the demon was going to descend on the hall,
that he had plotted all day, from dawn-light
until darkness gathered again over the world
and stealthy night-shapes came stealing forth
under the cloud-murk.

Read this excerpt from Grendel.

Thus I fled, ridiculous hairy creature torn apart by poetry—crawling, whimpering, streaming tears, across the world like a two-headed beast, like mixed-up lamb and kid at the tail of a baffled, indifferent ewe—and I gnashed my teeth and clutched the sides of my head as if to heal the split, but I couldn’t.

*Grendel is described as an unfeeling creature in Beowulf, but he is a sensitive and emotional character in Grendel.
*Grendel seems comical and ridiculous in Beowulf, but he seems calm and calculating in Grendel.
*Beowulf acts cowardly in Beowulf, but he behaves like a fearless hero in Grendel.
*Beowulf feels sympathy for Grendel in Beowulf, but he is jealous of Grendel in Grendel.