The Sith of the prequel films are a two-person conspiracy, and the films never explain why. Path of Destruction is the book that explains why, and it is a measure of Drew Karpyshyn's craft that the explanation is not a lore dump but a character.
Dessel
We meet the future Darth Bane as a cortosis miner on Apatros, in debt to the company store, good at cards and better at violence. Karpyshyn spends real time in this life before the Force ever enters the picture, and it pays off: by the time Bane reaches the Sith academy on Korriban he is already legible as a person who has learned exactly one lesson about power, which is that nobody hands it to you.
What follows is a school story. That is not a joke — the middle third of this novel is essentially a campus narrative about a mature student outperforming his instructors and being resented for it. It works because the academy is a genuinely stupid institution, and Bane's contempt for it is earned rather than asserted.
The idea at the centre
The Brotherhood of Darkness has thousands of members and is losing a war it should be winning, because an army of Sith is an army of people who each want to be in charge. Bane's conclusion — two at a time, one to embody power and one to crave it — is presented as a piece of engineering rather than a piece of malice. That framing is the novel's best trick, and it is the reason the character stuck.
The prose
Functional. Karpyshyn came to this from BioWare and it shows: scenes are staged with a game designer's clarity, the geography of a fight is always readable, and nobody says anything the plot does not require. You will not find a sentence here worth quoting for its own sake. You will also never be confused about what is happening, which is more than can be said for several better-written Star Wars novels.
Where it falls down
The supporting cast are functions. Githany, the rival who is also a romantic interest, exists to be a test Bane passes. The Jedi are almost entirely off-page. And the book's moral universe is thin in a way that matters — it wants us to find Bane compelling, and succeeds, but it never quite risks making him repellent, which a novel about the invention of a thousand-year atrocity probably should.
Who should read it
Anyone who found the Sith of the films more interesting as a system than as characters. It is also, usefully, a completely standalone entry point: it requires no prior reading at all, and it is set far enough from everything else that nothing can spoil it. Continue to Rule of Two if the apprenticeship material grabs you.
