In Small Favor, all thirty coins are supposedly accounted for. Twelve coins have allegedly been collected prior to the start of the book. One is collected at Marcone's safehouse. Eleven more are gained at the aquarium, and then six Denarians are confronted on the island. Meaning, eighteen Denarians actually appear in the book. Seven of these Denarians are very easy to keep track of, those being Nicodemus, Deirdre, Tessa, Rosanna, Magog, and Thorned Namshiel. As well as Akariel, the coin Thomas picks up at the fight in Marcone's safehouse, which Harry immediately gives to the Knights.
The problem is keeping track of the eleven coins gained at the aquarium. But let's try it anyway:
(Note: Harry then says he sees "more than a dozen" Denarians enter the Aquarium. Eighteen, minus Nicodemus, Namshiel, Akariel, and Urumviel, makes fourteen...ish. (We'll come back to this.)
(Note: We then hear another Denarian presumably get shot by Kincaid ("On the far side of the room one of the Denarians started screaming, a wail of agony"). This Denarian will not be counted at this time, as it likely did not die from this shot and thus could be any of the Denarians that show up later. I'm going with this for a few reasons.)
Here's where it gets a little tricky. Why is it tricky? There's just three Denarians left, right? WRONG.
The first problem: Dresden then mentions "half a dozen" other Denarians that appear to surround Ivy. This does not include Obsidian Statue or Shaggy Feathers (who are still sitting on Harry), but it does including Rosanna. So we have about five other unnamed Denarians.
So... given the inexact nature of the phrase "half a dozen," and because I need this count to work, I'm going to round "half a dozen" down to a generous four. TRY AND STOP ME YOU CAN'T. (I suppose we can also say that the lizard-thing Denarian is still alive and increasing the headcount. Or that any of Varthiel, Ordiel, or McKullen were not taken out and Rosanna was lying.)
Minus Rosanna, that's still three new Denarians. That's perfect, right?
No. Because of the second problem: The other safehouse Denarian.
At Marcone's safehouse, where Harry first meets Tessa, he, Thomas, and Hendricks kill two Denarians. One is seemingly already dead by the time Harry sees it, describing the body as "black and big and furry." The second is Akariel, the antlered Denarian whose coin Thomas finds and brings to Michael's house.
Harry and Thomas do not bring the other Denarian's coin.
What happened to this other coin? We have a few options.
For simplicity, I will be working under the assumption that there were indeed only eighteen Denarians total in Small Favor.
Back to the three Denarians with Rosanna. Dresden says most of them "just looked big and mean." So that means two that look big and mean, and one that does not.
The one that isn't big and mean is #11.
Kincaid kills #5 (Shaggy Feathers). He also shoots the head off of #4 (Obsidian Statue), but it seems to survive fine without it. Obsidian Statue seems to go off on its own ("digging a hole through the bleachers and into the material beneath"), but again, for the count to work we'll have to assume it quickly rejoins the fight.
Seven of the eight remaining Denarians attack Ivy. That's:
Great! That's all eleven! Except... Wait, there's a Denarian still alive here, right? One that isn't attacking Ivy?
Tarsiel is a problem. We don't know what Tarsiel looks like, so it could be any one of the other unnamed Denarians still alive at this time (presuming lizard-thing, Varthiel, Ordiel, and McKullen are all actually dead). We know Tarsiel isn't the "dried tree root" Denarian, because that is one of the seven attacking Ivy. But the other three?
After the battle, Nicodemus, Namshiel, Tessa, Rosanna, Magog, and Deirdre escape, leaving behind eleven Denarians, living or dead.
So who killed what?
(I'm only considering a kill to be "confirmed" if we see a Coin leave the body, or if trustworthy characters confirm the death.)
It's not over. I'm sorry.
Because Michael contracts this information. Michael says that he and Sanya found a Denarian who had drowned to death. But the only Denarians who did not escape and were not definitely killed before the water tank explosion were Denarians that Kincaid supposedly killed.
So then Kincaid only killed four Denarians?
No, because Michael also claims that Kincaid seems to have killed five Denarians, based on the wounds on the bodies.
So which is it?
who cares i'm tired