Beowulf (3140–3170). "Beowulf" begins with the story of Hrothgar, who constructed the great hall Heorot for himself and his warriors. In it, he, his wife Wealhtheow, and his warriors spend their time singing and celebrating. Grendel, a troll-like monster said to be descended from the biblical Cain, is pained by the sounds of joy. Grendel attacks the hall and kills and devours many of Hrothgar's warriors while they sleep. Hrothgar and his people, helpless against Grendel, abandon Heorot. Beowulf, a young warrior from Geatland, hears of Hrothgar's troubles and with his king's permission leaves his homeland to assist Hrothgar. Beowulf and
Beowulf: The Monsters and the Critics work's wide influence. Tom Shippey wrote that the essay "was seized upon eagerly, even gratefully, by generations of critics". Alvin A. Lee wrote that "Tolkien's manifesto and interpretation have had more influence on readers than any other single study, even though it has been challenged on just about every one of its major points." Seth Lerer wrote that the essay "may well be the originary piece of modern "Beowulf" criticism. … The strategies … control the fundamental assumptions of Old English scholarship for the next fifty years." R.D. Fulk commented that "No one denies the historical importance of this lecture.