THIS REVIEW CONTAINS SPOILERS!
Two households, both alike in dignity,
In fair Verona Lacanthium where we lay our scene,
From ancient grudge break to new mutiny,
Where civil blood makes civil hands unclean.
A Trade of Blood opens with a Romeo and Juliet inspired murder. Two young persons from powerful rivalling families conduct a secret love affair, until the girls gets killed while the boy is the only other person present. Everything points to the boy being guilty, and it’s up to Ana and Din to try to keep the peace while finding out what really happened.
Worldbuilding is undoubtedly the star of the show.
Both families make their money in augmented cattle trade. One family breeds enormous cows, while the other uses green brainwashed cats with fingers to pick the cotton for them, figuratively speaking. Both of their operations need land and land is a finite resource, making the political atmosphere delicate as both strive for economic dominance in the Lacanthium region.
The most interesting part of the murder is also the murder weapon. It’s revealed pretty early on that the girl was killed the same way aforementioned green cats are forced to pick cotton, with a fungus infection that creates a web in their brain, forcing them to act in a certain way to specific stimuli.
While I loved the fantasy elements, I don't think it’s a successful murder mystery.
There are, broadly speaking, two ways to do a murder mystery: the closed circle murder mystery and the procedural murder mystery.
In closed circle mystery, the reader is introduced to a number of suspects and gets to play along by trying to figure out who the culprit is. The culprit is always a character the reader is familiar with. Most Agatha Christie novels fall under this category.
In procedural types, the author doesn’t try to introduce the reader to all possible suspects. The reader follows the investigator(s) as they discover clues, talk to suspects and eventually solve the crime. The culprit can be a familiar character, but doesn’t have to be. The emphasis is on the twists and turns of the investigation. The Girl with The Dragon Tattoo is a famous example of this kind of story.
I would say The Tainted Cup was the procedural type, while A Drop of Corruption leaned more toward closed circle mystery. A Trade of Blood is also a closed circle mystery, but the problem is that there aren’t enough suspects in the story to make it compelling. The investigation in on itself is also not interesting enough to carry it into the procedural mystery fold.
In a story where two factions are pitted against each other, it only makes sense for the killer to be from one of the families, and neither family has that many family members.
The female victim is Zansay Burav, daughter of the head of the Burav family, Burilis Burav. That’s the family with green cats.
Her lover and main suspect is Castus Armenta, last remaining child of the head of the Armenta family, Velona Armenta. That’s the family with huge cows.
The Burav family has only two members we get an introduction to: Burilis Burav and his 18-year-old son Jalin Burav.
The Armenta family seems to have four members left: Castus the suspect, her mother Velona Armenta, Velona’s brother Trikao and Trikao’s son Ippeas.
So let’s examine the suspects as they appear to us exactly halfway through the story (that’s when I wrote this):
Burilis Burav - Immediately the prime suspect due to his expertise with the murder weapon. The only question mark is whether he’s really willing to kill his own daughter in order to achieve financial dominance over the region.
Jalin Burav - Good suspect. He could reasonably be expected to have the knowledge to pull it off due to family trade and the motive is there, he could want to blow up the whole augmented cattle trade from the inside out in order to escape it.
Castus Armenta – Not a serious suspect because it’s clear he loved Zansay and is wrecked by guilt over her death. Also the small problem of getting himself hanged along the way.
Velona Armenta - Not a serious suspect because her only living child Castus is guaranteed to be hanged for this murder, leaving her with no heirs.
Trikao Armenta - The most promising suspect from this family. He has the motive over inheritance issues, and he’s been around augmentated cattle long enough to learn how to construct the murderweb.
Ippeas Armenta - We can also cross off Ippeas from the list of suspects, because it turns out that Din’s estranged sister Fotia is betrothed to Ippeas and this is not the kind of book where good characters fall in love with killers. Ippeas was wasted potential in my opinion. There are no shades of gray to him, nothing to make you think he might be the guilty party. There is very little reason for him to exists in this story at all beyond making the investigation a little more convenient for Din.
Additionally, there are four characters who are not part of either family:
Fotia - Din’s sister and obviously not the murderer because she’s Din’s sister lol.
Princeps Seriv the town officer - He helps Ana and Din with their investigation. Lacks the motive and the know-how to be a serious suspect.
Velona’s feritility doctor - A minor character who is extremely sus, but seems to lack the knowledge on how to develop the murder weapon.
Commander Tauri - leader of the nature-loving empirial hippie group Orbiis. He definitely has the knowledge of the murder weapon and he also has the motive of righteousness, kind of like when animal rights activists who take it too far to prove a point, but unfortunately it’s immediately clear that he’s one of the good guys with zero hidden depths. Also doesn't help that he seems to be Din's love interest.
Right after 50% mark, there is a fire in the Burav household, killing off all the Burav family members except one: Jalin Burav, who is present at the house but escapes. While the fire is a nice dramatic event for the plot, it’s not a very good decision for the murder mystery, because with half the book still left, we got a story where only two characters are still on the suspect list: Trikao Armenta and Jalin Burav. Maybe the fertility doctor as well as an accomplice. That’s literally it. Like where are the suspects???
There are some clumsy attemps in the second half to make us suspect Commander Tauri by Ana spelling it out for Din, but these are so heavy-handed that no serious reader would fall for them.
So when the final reveal finally happens it’s like duh, WHO ELSE COULD IT HAVE BEEN?
No small part of the book is taken up by a side quest into the mysterious ancestors called the Daljen, who were a tribe of the Khanum and who used to live in that place a few hundred years ago. Honestly, this side plot didn’t do much for me and I had trouble following why it was important. Only in the last two chapters will we get an answer to that and the twist was good, not gonna lie.
Overall, I wish the character work had been more nuanced. Everybody in this book is transparently either a good guy or a bad guy (except for the killer I guess), and it clashes with the bleak and strange world they live in. Nobody has conflicting morals, hypocrisies, or hidden motives. It feels juvenile. Maybe it was true of the first two installments of this series as well, but I honestly can’t remember noticing it that much before. I rolled my eyes at the end, when Ippeas Armenta comes to embody #NotAllRichPeople and chooses to sell his newfound fortune. I can’t say I see any supposed anti-aristocratic themes. I think A Trade of Blood has far more to say on animal rights than it does on class. One of the most unsettling scenes for me was when Ana and Din visted Velona and we see Velona ordering someone to play a tune for her pet field cat, making the cat dance against its will. So when the final reveal comes in the forbidden forest, that the Daljen were the bad guys who conditioned ordinary people into mindless slavery with the use of the fungus web, it seemed to me more like a commentary on humans as animals than commentary on class.