Book Review: The Salt Grows Heavy by Cassandra Khaw - The Fantasy Review

Book Review: The Salt Grows Heavy by Cassandra Khaw

The Salt Grows Heavy

Nathan‘s Review of The Salt Grows Heavy by Cassandra Khaw

*Disclaimer: I received a free copy of this book from the publisher in exchange for a fair and honest review. All opinions are my own.



112 pages

This Book is For You is You Like: 

  • Dark fairy tale retellings
  • Body horror
  • Romance stories that don’t feel like romance
  • Beautiful prose

This Book is Not For You if You:

  • Are easily squeamish with gross descriptions
  • Prose verging on purple

Publisher’s Blurb

From USA Today bestselling author Cassandra Khaw comes The Salt Grows Heavy, a razor-sharp and bewitching fairytale of discovering the darkness in the world, and the darkness within oneself.

You may think you know how the fairytale goes: a mermaid comes to shore and weds the prince. But what the fables forget is that mermaids have teeth. And now, her daughters have devoured the kingdom and burned it to ashes.

On the run, the mermaid is joined by a mysterious plague doctor with a darkness of their own. Deep in the eerie, snow-crusted forest, the pair stumble upon a village of ageless children who thirst for blood, and the three ‘saints’ who control them.

The mermaid and her doctor must embrace the cruelest parts of their true nature if they hope to survive.

review of The Salt Grows Heavy

If you are looking for a dark, prose-forward, and violent fairy-tale, look no further than The Salt Grows Heavy.

We’ve all heard the classic story before: A mermaid gives up her voice to be with the human man she loves. But this story is much darker than the Disney movie you might be thinking about. This mermaid loses her voice when the humans cut her tongue out from her body. When she and her human lover have daughters, these daughters aren’t messing around. They kill all of the humans, and our mermaid protagonist is now on the run. She meets up with an androgynous plague doctor with a dark past, and they travel together until they reach a small village where the children play murderous games, and the government is controlled by three prophet-surgeons. The Mermaid and Plague Doctor have one primary goal: survive.

There are so many wonderful elements to this novella that I don’t even know where to begin.

Khaw’s prose is beautiful and transportive. Their prose is evocative of the old fairy tale style, but with an elevated and modern twist. Khaw took the Brothers Grimm, Hans Christian Anderson, and more and somehow further twisted their narratives into the gothic and horrifying. It is obvious that Khaw carefully selected each and every word to achieve just the right connotation; just the right emotional response; just the right poetic beat. I found myself often needing to go back and re-read passages because I was so swept up in Khaw’s words that I wasn’t actually following the story. (I was also glad that I read this book on a Kindle because there were a lot of words that I had to look up in the dictionary!)

Take just the opening passages of the book. I read those first few pages at least three times as I was swept away by Khaw’s lyrical description of the Mermaid’s daughters murdering their father while their house burned down. It even took me a moment to realize that that was happening because the prose was so poetic, so metaphorical.

Khaw populates her world with mysterious characters that come to (eerie and sinister) life. Both the Mermaid the Plague Doctor are well-drawn and complex characters. The Mermaid is our POV character throughout the novella, and so we see the world through her lens. She is a character who thought she found love and happiness, but was quickly escorted into a terrible situation that only got worse. As readers, it is easy to empathize with her plight, and we cheer her on through her trials and triumphs. However, to me, and maybe it was because they weren’t the POV character, the more interesting of our two main characters was the Plague Doctor. Khaw slowly peels away their mask (both literally and figuratively) as we get to know their dark past and foreboding future. The Plague Doctor brings a jovial sadness to the novella that felt so very real and so very human.

This novella is not for the easily grossed out or faint of heart. Khaw never goes too far, and the horror elements never feel exploitative, but their descriptions of the dark, bloody, and gross things that the Mermaid and Plague Doctor encounter and experience made my skin tingle. I am one of those people who gets a small pain in my knee if someone is talking about how they hurt their knee, and so I was experiencing these little sensations from the images that Khaw conjured up in this little novella. The book isn’t scary, but it is dread-inducing as Khaw takes us through this mysteriously horrifying village located within this greater horrifying world.

Through all of the body horror, the sinister surgeons, and the violent villagers, this is a story of love between two broken people crossing a shattered landscape together. Despite its short length, the relationship between the Mermaid and the Plague Doctor grows organically. It’s not a fantasy-romance by any means, but it two people finding each both despite and because of the macabre.

I always feel that my role as a reviewer is to help set reader expectations for the books that I review. So, I will say this – if you are primarily a plot reader than this book may not be for you. Readers who do not care about the actual prose or writing of the book (or who value other elements of fiction writing more) may find this novella over-written (some may even call the prose purple) and bloated in its writing. While the Khaw definitely revels in some of the horror elements, particularly in the latter half of the novella, much of the novella is also slow and contemplative. If you aren’t swept up in Khaw’s world and writing in the first few pages, then nothing the novella does later really changes that.

For me, the entire thing really worked and I enjoyed spending an evening in Khaw’s messed up world. This was my first book by Cassandra Khaw, and I will now make sure to go seek out more.

Concluding Thoughts:

This novella won’t be for everyone as The Salt Grows Heavy is unlike anything I’ve ever read. It is a gorgeously grotesque fairy-tale lead by two memorable characters finding love in a disturbing world. Readers who love lyrical prose, body horror, and very slanted fairy tale retellings should definitely check this one out.

Related to our Review of The Salt Grows Heavy

My name is Nathan and I'm currently getting my Ph.D. in archaeology in the US, but in my freetime I absolutely love reading any kind of fantasy book (and watching way too much TV). So I guess you could say that during the day I like to escape into the past and in the evening I like to escape into other worlds! Review requests can be sent to You can also find me on twitter (@nathan_reviews) and TikTok (nathans_fantasy_reviews).

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