MoodReads - Romance Book Discovery
The Stacks
DiscoverMy ShelvesReading Stats
Sign upLog in
MoodReads - Romantasy Book Discovery

because goodreads doesn't
have a spice filter

Discover

  • Discover Page
  • Reading Stacks
  • Tropes
  • Moods
  • Creatures
  • Spicy Books

Get MoodReads

  • so what is it.
  • iOS App
  • Browser Extension
  • MoodReads Premium
  • Gift a Subscription
  • For Creators
  • Share MoodReads

Go Deeper

  • FAQ
  • Roadmap
  • Request a Feature
  • vs Goodreads
  • vs StoryGraph
  • Who Built This?

The Serious Stuff

  • Values
  • Privacy
  • Terms
  • Support

get emails when something big happens. no spam, just news.

© 2026 MoodReads. Built by a romantasy reader for romantasy readers.

rattle the stars, bitches.

Cover of The Salt Grows Heavy

The Salt Grows Heavy

by Cassandra Khaw

💕🚪closed door
3.5 on Goodreads

Rate this book

sign in to add to shelves, track reading status, and see your stats

find similar →
ReportSpoiler settings

Ending

reveal ending

Why Read This?The one-sentence sell. What do you get for showing up to this book, even when it's hard?

A visceral, poetic horror novella where a freed mermaid and a plague doctor wade through body horror and tenderness in equal measure.

Synopsis

From USA Today bestselling author Cassandra Khaw comes The Salt Grows Heavy, a razor-sharp and bewitching fairy tale of discovering the darkness in the world, and the darkness within oneself. You may think you know how the fairy tale 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.

book details below may contain spoilers. some hidden

At a Glance

A curator's note goes here with flavor that could spoil the plot.

trope onetrope twotrope threetrope four

Book Details

spoiler protected·tap tags to reveal

Goodreads RatingThe crowd's verdict. Take it with salt, though. Some masterpieces are polarizing.

3.54 ★

Primary GenreWhat type of book this is. Romance? Fantasy? A 400-page therapy session disguised as a thriller?

Other

PairingWho's falling in love? The gender makeup of your main romance. Helps you find your specific flavor of love story.

N/A

POVWhose head are you in? First person = deep in the feels. Third = watching from above. Dual = emotional whiplash (affectionate).

Third Person

AudiobookCan you experience this book while driving? Washing dishes? Working out while emotionally destroyed? Check here.

AvailableCan you experience this book while driving? Washing dishes? Working out while emotionally destroyed? Check here.

No audiobook yet

TropesPlot devices and story situations that drive the romance. These are the circumstances that throw characters together or create conflict, not how they personally relate.

spoiler protected·tap tags to reveal
found familylgbtq+ romancemonstrous protagonistslow burn
RomanceMagicActionAngstWorld
Theme Constellation

Mood & Vibe

MoodWhat you felt reading this. Swoony? Gutted? Deliciously unhinged? The emotional fingerprint.

darkgothichorrific

Writing StyleHow the author writes - prose style, dialogue approach, and narrative voice. This is about craft and delivery, not emotional effect.

lyricaldense prosegothicvisceral imagery

Story PacingDoes the story sprint or saunter? Fast = you'll miss sleep. Slow = you'll savor every word. Medium = balanced chaos.

fast

Emotional WeightHow much are you gonna cry? Light = fun feels. Moderate = real stakes. Heavy = bring tissues. Devastating = call your therapist.

heavy

Energy RequiredCan you read this on a Tuesday after work, or do you need a full Saturday and three cups of coffee? Low/Medium/High.

high

VibesOne perfect sentence that captures the essence. Like: 'Fae politics meets forbidden romance with zero chill.'

Grim fairy tale soaked in blood and saltwater, beautiful and grotesque

Characters

spoiler protected·tap tags to reveal

FMC ArchetypeWho is she? The female main character's core identity/role. Assassin? Healer? General Badass?

monstrous weary siren

Spice Details 🌶️

spoiler protected·tap tags to reveal
🌶️
🌶️
🌶️
🌶️
🌶️
🌶️
Spice Level 1

Spice StyleNot just how much spice, but what kind. Emotional intimacy? Explicit but vanilla? Plot-driven heat? Know your flavor.

No romance or spice; intimacy expressed through shared survival and quiet, monstrous companionship.

Getting SteamyGentle kinks. Fun but nothing too crazy. The appetizer, so to speak.

None

Bringing the HeatFor those who know exactly what they came for. This is where you find your exact brand of chaos. The good stuff.

None
Browse more books by spice level →
This stuff might hit different. No shame in needing to know what's coming. (1)▼
spoiler protected·tap tags to reveal
body horror (extreme), cannibalism, graphic violence, gore, sexual assault (backstory, off-page), violence involving children, mutilation, existential dread
Browse books by content warning →

World & Setting

spoiler protected·tap tags to reveal

World TypeWhat kind of world are you stepping into? High fantasy = full secondary world. Urban fantasy = magic in modern cities. Portal = starts here, goes there.

dark fairy tale

Primary SettingWhere does the story physically take place? Court intrigue = palace. Dark academia = campus. Cozy witch vibes = small town. This is about location, not world rules.

plague-ravaged coastal kingdom and nightmarish hinterlands

Reading Context

spoiler protected·tap tags to reveal

Emotional PayoffWhat you get for showing up. The catharsis, the growth, the 'I'm a different person now' moment. This is why the hard books are worth it.

bittersweetcathartic releasehaunting

this page is just the start

  • import your Goodreads or StoryGraph TBR. we tag every book with spice, tropes, CWs, mood, all of it
  • tell us a vibe (“enemies to lovers fae, high spice”) and BookMatch finds the book
  • 4,000+ romantasy books searchable by 45 fields
  • book clubs, reading challenges, and a community of readers who get it
free account

Quick Facts

Spice LevelThe heat scale. 0=wholesome, 1=kisses, 2=fade-to-black, 3=tasteful spice, 4=explicit, 5=you need a cold shower. Know thyself.💕🚪closed door
GoodreadsThe crowd's verdict. Take it with salt, though. Some masterpieces are polarizing.3.54 ★
EndingEnding type: HEA = forever happy (you'll cry happy). HFN = happy for now (open to interpretation). Bittersweet = complicated feelings. Know what you're signing up for.reveal ending
Similar picks →

My Notes

Loading...

Short Takes

quick 280-character reactions for this book. drop a thought, rate the vibe, keep scrolling.

Sign in to share your take.

Loading...

Book Chat

live reactions, hot takes, screaming into the void about The Salt Grows Heavy

Similar Books

Cover of Nettle & Bone

Nettle & Bone

T. Kingfisher

💕🚪·third person
slow burnfound familyadventure romance
Cover of Uncharmed

Uncharmed

Rewitched, #2

Lucy Jane Wood

💕🚪·third person
slow burnfound familyopposites attract
Cover of The Well of AscensionKU

The Well of Ascension

The Mistborn Saga, #2

Brandon Sanderson

💕🚪·multi-POV
love triangleslow burn
Cover of Hearts Forged in Dragon Fire

Hearts Forged in Dragon Fire

Erica Hollis

💕🚪·first person·✓
slow burnenemies to loversforced proximity
Cover of Daughter of the Cursed Kingdom

Daughter of the Cursed Kingdom

Witch Hall, #2

Jasmine Skye

💕🚪·dual POV
enemies to loversslow burnforbidden love
Cover of Blade Breaker

Blade Breaker

Realm Breaker, #2

Victoria Aveyard

💕🚪·multi-POV
friends to loversslow burnfound family
Cover of The Thirteenth ChildKU

The Thirteenth Child

Erin A. Craig

💕🚪·first person
god/mortal romanceforbidden loveforced proximity
Cover of War Storm (Red Queen, #4)

War Storm (Red Queen, #4)

Red Queen, #4

Victoria Aveyard

💕🚪·multi-POV
forbidden loverivals to loverspolitical alliance romance