Mora Aresh will carve peace into Orenos again— [little thing, but also kinda big that made me cringe, which is that hyphens aren't the same as dashes. If you can't figure out how to type a dash on your computer, you can just copy and paste this one in. Maybe not all agents will be as big punctuation dorks as I am, but why take the risk when it's an easy fix?] even if she ends up remembered a tyrant. But otherwise solid hook. Only criticism is wondering if we can get something more on Mora, a descriptor before her name. Like "Deposed ruler Mora Aresh" or "Reluctant exile Mora Aresh" or "Jazz enthusiast Mora Aresh" (one of those is probably not accurate and definitely not relevant). Because even after reading the rest of the query, I'm not quite sure who Mora is (to the point where I'm not actually sure if the other two suggestions are correct, either), so giving us a context clue right from the start would help a lot on that.
When the Ivory Flower, an entity that’s plagued the cosmos for centuries, drives her expedition to a familiar madness, Mora sees herself reflected in their scarlet marked eyes. Nearly killed, but never beaten, she returns to the only person she can trust back home. Again, just lacking in context. What expedition is this? Are they leaving Orenos? Returning? Going exploring?
The Ivory follows her wherever she goes. Instead of a warm welcome, her cousin and successor has tainted her soul with the Ivory’s intoxicating song Is the cousin "the only person she can trust back home"? Be clear. And also, is "her soul" Mora's or the cousin's. It's not clear.. The one person she loved and trusted now dances to its maddening melody. Her world, her legacy, the Ivory robs her of everything she holds dear. I'd plop Mora's name in this paragraph at least once. There's a whole bunch of "she" and "her", but never an absolute clarifier that you're still talking about Mora. Unless you're not...?
But Mora is the woman who held the world together for three decades. Born of fire, bound in steel, she’ll show the Ivory and those who succumb to its power to never cross she who thirsts for fire. She’ll ignite a world war to deter the Ivory’s song and prevent her world’s end. But Mora has no idea that her war may lead Orenos to repeat its forgotten tragedies again. To save her world, she’ll have to become one with the Ivory. At the end of it all, she may have to bring Orenos to its inevitable end. This paragraph as a whole is a little vague. What does it mean to "become one with the Ivory"? And why does she need to do that?
A TYRANT COMES is a 105,000-word dark fantasy novel, a standalone tragedy with series potential.
As you can probably discern from my comments, I think this needs more clarity. Mora's our heroine, I got that, and she's the sort of person who will sacrifice her own morals in the name of the greater good, more or less. And the Ivory is the antagonist, a corrupting force, and I feel like I don't even really need to know why it does what it does. But I feel like I have these two pieces circling each other in the mist, so that nothing else can really be seen around them. Mora seems to be a bigwig in Orenos, but I don't know anything beyond that. As for the Ivory, is it a physical being that can actually combated against, or more some incorporeal force that drives people mad? And I'm a little uncertain about the state of the world around them. The Ivory is causing problems, but how widespread is it? Is there widespread suffering in Orenos because of it, or is it's impact right now limited to a few people with the expectation that it will slowly destroy everything?
You've got some decent voice here, and you have given me a decent glimpse of Mora's personality, so that's some good stuff to work off of. Keep at it. Good luck.