Beowulf: The Monsters and the Critics writing in "The New Yorker", calls it "a paper that many people regard as not just the finest essay on the poem but one of the finest essays on English literature." She adds that "Tolkien preferred the monsters to the critics." Regina Weinreich, reviewing "The Monsters and the Critics: And Other Essays" in "The New York Times", wrote that the title essay "revolutionized the study of the early English poem "Beowulf," in which a young hero crushes a human-handed monster called Grendel. Against the scorn of critics, Tolkien defends the centrality and seriousness of literary monsters, declaring his own belief
Hrólfs saga kraka elaborates on the same matter as several other sagas, and chronicles, in Scandinavian tradition, and also in the Anglo-Saxon poems "Beowulf" and "Widsith". In "Beowulf" and "Widsith", many of the same characters appear in their corresponding Old English forms: Hrólfr Kraki appears as Hroðulf, his father Helgi as Halga, his uncle Hróarr as Hroðgar, his grandfather Halfdan as Healfdene and their clan, the Skjöldungs, as the Scyldings. Moreover, some of their enemies also appear: Fróðo as Froda and king Aðils of Sweden as the Swedish king Eadgils. In "Hrólfr Kraki's saga", Halfdan (Healfdene) had three children, the sons Helgi (Halga)