Grendel when to the Herot, killing people, and leaving beowulf on an adventure to kill him. "The monsters thoughts where quick as his greed or his claw: He slipped through the door and there in the silence snatched up thirty men, smashed them unknowing in their beds and ran out with their bodies, the blood dripping behind him, back to his lair, delighted with his nights slaughter."
After Grendel dies, his mother comes for revenge. Beowulf adventures though a cave under a lake. Beowulf tries to kill her with an average sword and it didn't kill her. He finds another sword made by giants and cuts her head off. " Her body fell to the floor, lifeless, the sword was wet with her blood, and Beowulf rejoiced at the sight."
50 years passes. Beowulf decides to fight the dragon. The dragons blood was poisonous and when it bite Beowulf he falls to the ground and dies. " I sold my life for this treasure, and I sold it well. Take what I leave, wiglaf, lead my people, help them; my time is gone.