Question: what is the summary of the battle with grendel?
Answer: Beowulf's warriors draw their swords but their blades cannot pierce Grendel's hide. After a feverish and bloody one-on-one battle, Beowulf finally tears Grendel's arm off at the shoulder. Grendel retreats to his home in the marshes and dies, leaving Beowulf victorious and Heorot free from the terror of Grendel.