A decade after her arrival in our consciousnesses, I don't think we've plumbed the depths of Elizabeth Costello—the curmudgeonly, exhausted, and elderly Australian novelist who populates a number of the fictions of J. M. Coetzee. She complicates and ironizes Coetzee's LIVES OF ANIMALS and (naturally) ELIZABETH COSTELLO, and she pops up to excoriate "John" in SLOW MAN. For me, Costello is the welcome voice of literature and unregulated (even inadmissible) feeling in the dry and argumentative discourses of both analytical and Continental philosophies, and Mulhall's is a timely and exhaustive analysis of Elizabeth Costello as device and persona. Mulhall's sentences can be frustratingly opaque and baroque, and I didn't find his excursus into theories of modernism and art to be particularly helpful. Nonetheless, he recognized that Coetzee is challenging philosophical thinking about animals in ways that (many) philosophers seem ill-equipped to respond to, especially given the many shades of irony that tint Costello's characterization and presence within the books.
As an animal activist myself, I see myself in Costello—with all my faults and tics. I recognize her exhaustion, her recognition of her inadequacy and inconsistencies, her shocked irritation that others cannot see what she sees, her envy at their comfort, and her sense that any contribution (whether written or in her life) that she might make is wholly inadequate to the horrors that surround her. That embodiedness cannot be rationalized, which is why the novelist or poet (as Costello might say) is better able to explore our animality than the philosopher.
Mulhall's book is a bit of a slog but well-worth the time and effort and I look forward to reading it again.