Beowulf: The Grendel's Mother

Second battle: Grendel's Mother

The next night, after celebrating Grendel's defeat, Hrothgar and his men sleep in Heorot. Grendel's mother, angry that her son has been killed, sets out to get revenge. She violently kills Æschere, who is Hrothgar's most loyal fighter.

Hrothgar, Beowulf and their men track Grendel's mother to her lair under a lake. Unferth, a warrior who had doubted him and wishes to make amends, presents Beowulf with his sword Hrunting. After stipulating a number of conditions to Hrothgar in case of his death (including the taking in of his kinsmen and the inheritance by Unferth of Beowulf's estate), Beowulf jumps into the lake, at the bottom of which he finds a cavern containing Grendel's body and the remains of men that the two have killed. Grendel's mother and Beowulf engage in fierce combat.

At first, Grendel's mother appears to prevail. Beowulf, finding that Hrunting cannot harm his foe, puts it aside in fury. Beowulf is again saved from his opponent's attack by his armour. Beowulf takes another sword from Grendel's mother and slices her head off with it. Travelling further into Grendel's mother's lair, Beowulf discovers Grendel and severs his head. The blade of Beowulf's sword touches Grendel's toxic blood, and instantly dissolves so that only the hilt remains. Beowulf swims back up to the rim of the pond where his men wait in growing despair. Carrying the hilt of the sword and Grendel's head, he presents them to Hrothgar upon his return to Heorot. Hrothgar gives Beowulf many gifts, including the sword Nægling, his family's heirloom. The events prompt a long reflection by the king, sometimes referred to as "Hrothgar's sermon", in which he urges Beowulf to be wary of pride and to reward his thegns.