Olivia Slahta English 12 The main theme for Beowulf is good vs. evil. There are many evils in the poem that Beowulf battles. One evil in Beowulf is Grendel the monster, a descendant from Cain. Grendel is angry and destructive but he is intelligent. “Grendel would never have got away with such unchecked atrocity, attacks on your king, havoc in Heorot and horrors everywhere." (Beowulf lines 590-594) In these lines Beowulf is talking to Unferth about Grendel and how much destruction he brings to