Beowulf: The Monsters and the Critics give it a powerful effect. He rebuts suggestions that the poem is an epic or exciting narrative, likening it instead to a strong masonry structure built of blocks that fit together. He points out that the poem's theme is a serious one, mortality, and that the poem is in two parts: the first on Beowulf as a young man, defeating Grendel and his mother; the second on Beowulf in old age, going to his death fighting the dragon. The work has been praised by critics including the poet and "Beowulf" translator Seamus Heaney. Michael D. C. Drout called it the
Old English literature which concludes Beowulf's fight with the monsters during his swimming match with Breca: Crowne drew on examples of the theme's appearance in twelve Anglo-Saxon texts, including one occurrence in Beowulf. It was also observed in other works of Germanic origin, Middle English poetry, and even an Icelandic prose saga. John Richardson held that the schema was so general as to apply to virtually any character at some point in the narrative, and thought it an instance of the "threshold" feature of Joseph Campbell's Hero's Journey monomyth. J.A. Dane, in an article (characterised by Foley as "polemics without rigour") claimed that