<Tr> <Td> </Td> <Td> This section needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (February 2017) (Learn how and when to remove this template message) </Td> </Tr> <Table> <Tr> <Td> </Td> <Td> This section may need to be rewritten entirely to comply with Wikipedia's quality standards . You can help . The discussion page may contain suggestions . (February 2017) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This section may need to be rewritten entirely to comply with Wikipedia's quality standards . You can help . The discussion page may contain suggestions . (February 2017) </Td> </Tr> <P> Grendel is originally found in the poem Beowulf, which is contained in the Nowell Codex . Grendel, being cursed as the descendant of the Biblical Cain, is "harrowed" by the sounds of singing that come every night from the mead - hall of Heorot built by King Hrothgar which describe the "Almighty ('s)" creation of the earth . He is unable to bear it anymore, and attacks Heorot . Grendel continues to attack the Hall every night for twelve years, killing its inhabitants and making this magnificent mead - hall unusable . Beowulf hears of these attacks and leaves the Geats to destroy Grendel . He is welcomed by King Hrothgar, who gives a banquet in celebration and afterwards Beowulf and his warriors bed down in the mead hall to await the inevitable attack of the creature . Grendel stalks outside the building for a time, spying the warriors inside . He then makes a sudden attack, bursting the door with his fists and continuing through the entry . The first warrior Grendel finds is still asleep, so he seizes the man and devours him (gory detail is given). Grendel grabs a second warrior, but is shocked when the warrior grabs back with fearsome strength . As Grendel attempts to disengage, the reader discovers that Beowulf is that second warrior . He has chosen not to use a weapon because he heard Grendel fights without one; this choice is what wins him the battle because Grendel has a charm that protects him from every weapon . A battle ensues, with Beowulf's warriors attempting to aid in the melee . Finally Beowulf tears off Grendel's arm, mortally wounding the creature . Grendel flees but dies in his marsh - den . There, Beowulf later engages in a fierce battle with Grendel's mother, over whom he triumphs . Following her death, Beowulf finds Grendel's corpse and removes his head, which he keeps as a trophy . Beowulf then returns to the surface and to his men at the "ninth hour" (l . 1600, "nōn", about 3 p.m.). He returns to Heorot, where a grateful Hrothgar showers him with gifts . </P>

What is the battle of grendel all about