the night in Heorot, Beowulf and his comrades being lodged elsewhere.
The hall is invaded by Grendel's mother, who kills and carries off one
of the Danish nobles. Beowulf proceeds to the mere, and, armed with
sword and corslet, plunges into the water. In a vaulted chamber under
the waves, he fights with Grendel's mother, and kills her. In the vault
he finds the corpse of Grendel; he cuts off the head, and brings it back
in triumph.