Grendel arrives and kills one of Beowulf's warriors, but then Beowulf seizes him in his powerful grip and refuses to let go. Although Beowulf's warriors try to help, their swords have no effect upon Grendel. After Beowulf rips off Grendel's arm, warriors follow the monster into his swamp and find that the waters are red with Grendel's blood. Beowulf was able to defeat “the captain of evil” by ripping off his arm.
