Naomi Novik’s three book Scholomance series is very good, indeed addictive — I have been reading and rereading it for months — and the way in which the third book solves the insoluble puzzles from the first two is impressive. There is, however, one thing wrong with it.
[Warning: Spoilers]
A major theme of the series is the undesirable and unattractive consequences of large inequalities of wealth, power and status, as illustrated by the interaction between Enclavers and Indies in the school. In the first two books, the inequality shown can be reasonably identified with its real world equivalent. In the third book it cannot. One can argue that rich people should treat other people better and share more of their wealth, as one can argue that the Enclavers should have taken less advantage of the Indies. But one cannot argue, at least not plausibly, that every billionaire got that way by torturing someone to death, which would be the equivalent of what we learn about the creation of enclaves in the final volume.
Someone might respond that every billionaire could have used his wealth to save the life of multiple starving children in Africa, that failing to do that is the equivalent of crushing Liu and loosing a mawmouth to consume random foreign mages. But it is not true — or at least it does not fit the moral intuitions of most people including, pretty clearly, Novik, who has already shown us enclaves failing to keep Indies alive, both in the Scholomance and the outside world, indeed has told us that her heroine believes she has no obligation to protect other students — even though she keeps doing so.
There is a sharp distinction in our moral intuitions between the consequences of action and of inaction. If failing to save someone's life is the moral equivalent of killing him then almost everyone living in a developed society is a murderer, since almost all of us, including me, Naomi Novik and most of my readers, could save a life by sufficiently reducing our consumption and donating the money saved to some suitable charity. By global standards most of us are, if not billionaires, at least moderately wealthy.
By making the Enclavers guilty of not merely being less aware of their advantages and less generous than they should have been but of becoming rich by crimes literally worse than murder, Novik converts her theme from a defensible criticism of real world inequality to a redo of "The ones who walk away from Omelas." It works to grab the emotions of the reader, as Ursula LeGuin has already demonstrated.
But at a cost.
That was awesome, and yeah stick through the first two to get to the third. Think of it as one long story, broke into thirds. Spoiler warnings...
Re: morals and such, There's a genetic, social thing that says family is more important than other. And yeah mawmouths are extreme.... It's like the worst thing to think about, and yet it's your family, so maybe you do that.... I just hope I never come close to any decision like it. I love my kids, I also think suffering has it's place in life, as the adage goes; what doesn't kill me makes me stronger. Would I be one to walk away from Omelas? IDK. There's a desire/bias to say yes.
The other piece of this is that the billionaire is likely accomplishing other useful activities with those billions of dollars. They're probably invested in companies which are providing goods and services to people who want them, in a self-continuing style which produces ongoing wealth and help for people over time.
So it can be argued that there is a benefit to shutting all that down and using the wealth instead for charitable donations, but many people who have considered the question in detail seem to come down on the side of at most siphoning some of the wealth used for consumption into charity, but not the total wealth of individuals who have demonstrated a talent for creating better ways to serve others via businesses.