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
The dragon (Beowulf) of a "heroic society" which "depends upon the honouring of mutual obligations between lord and thane". Wiglaf remains loyal to his king and stays to confront the dragon. The parallel in the story lies with the similarity to Beowulf's hero Sigemund and his companion: Wiglaf is a younger companion to Beowulf and, in his courage, shows himself to be Beowulf's successor. The presence of a companion is seen as a motif in other dragon stories, but the "Beowulf" poet breaks hagiographic tradition with the hero's suffering (hacking, burning, stabbing) and subsequent death. Moreover, the dragon is vanquished through Wiglaf's actions: