How does the structure of Roger Mais' Brother Man borrow from, transform (and transcend) Aristotle's notion of a tragedy?

Roger Mais' Brother Man, to a large extent fits into Aristotle's theory of Tragedy as outlined in the Poetics. However, the first thing that may be questioned, when trying to fit Brother Man into Aristotle's description, is the fact that Aristotle suggests that the medium of tragedy is drama, not narrative; as, tragedy shows rather than tells. How then can one apply this description to the novel Brother Man? <Tab/>Roger …

…concrete reason for this hope at the end besides the people's temporarily re-kindled concern for and desire for forgiveness of him. This may appeal to the tragically pious Brother Man, but does little for the 'reality' of the existence of hope in the reader's eye. <Tab/>It may be concluded then, given the above, that Roger Mais' Brother Man does indeed borrow from, transform and transcend Aristotle's notion of a tragedy.