Reading "The Bladebone" was a bittersweet experience. This is primarily because I've become deeply invested in the the lives of Khan's characters and the wonderfully-detailed world they inhabit, such that turning the page on it all for the last time has left me feeling rather bereft. Further, in terms of overall quality, this final instalment ends the series on neither a bang nor a whimper, but something in-between.
My main critique of the narrative is that it spends far too much time with Arian and Sinnia, whose plotline is tediously slow-paced and lacks dynamism, and far too little time in Ashfall, in the company of the series' most interesting characters: Rukh, Arsalan, and Darya. This flaw is compounded by the fact that, while Arian's storyline is drawn to a satisfying close, the latter group receives decidedly more ambiguous (and hurried) endings, which I find frustrating. In particular, I'm left craving a follow-up novel dedicated solely to Rukh and Arsalan, ideally one that centres on the Black Khan's interminable political machinations and his commander's patient attempts to save him from himself, and that develops their fascinating relationship more fully.
On a more positive note, Daniyar is as wonderful as ever, Khan's world-building remains vivid and meticulous, and while the final showdown with the series' villain is incredibly confusing to read, the arrival of the roc is a fantastic moment that almost makes the surrounding chaos worth enduring. This is, in sum, a brilliant adult fantasy series that deserves to be widely known and loved.