Hálfdanar saga Brönufóstra to his father's kingdom and defeats and kills Soti and his Vikings. Although numerous sagas contain analogs to the iconic cave battle with Grendel and his mother in "Beowulf," none is closer to the Old English epic than is Hálfdan’s cave battle with Járnnefr and his wife. The saga is found in three, 15th-century vellum manuscripts, but its post-medieval popularity is evidenced by its preservation in over four dozen paper manuscripts. In the 18th century it served as the source for the first known saga forgery. "Hálfdanar saga Brönufóstra" has a sequel in "Sörla saga sterka", where it becomes clear
Beowulf they are unvoiced (as in "thing"): "þunor", "suð", "soþfæst". Kennings are also a significant technique in "Beowulf". They are evocative poetic descriptions of everyday things, often created to fill the alliterative requirements of the metre. For example, a poet might call the sea the "swan-road" or the "whale-road"; a king might be called a "ring-giver." There are many kennings in "Beowulf", and the device is typical of much of classic poetry in Old English, which is heavily formulaic. The poem also makes extensive use of elided metaphors. J. R. R. Tolkien argued in "" that the poem is not an