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Saltblood

Summary:

Edward Cullen was a vampire—beautiful, unreadable, and visibly panicked around my father.

I wasn’t just human. I was half Meir’ha’dun—not a mermaid, but something older. Colder. We evolved in the trench zones—no scales, no shimmer—just seawater skin and bones that don’t break.

My brown eyes turn silver when I shift. My teeth can slice through fishbone and flesh. I wasn’t mythical—I was biological: wrong, real, and surfacing fast.

Myth makes monsters sound poetic. Biology just makes them real—and reality always comes with a cost.

I moved in with my father to escape the Phoenix heat—and to hunt in the deep. Edward brought me a tuna sandwich and failed to dodge Charlie’s shameless innuendos.

 

A Twilight AU that mirrors canon’s pivotal moments—but tells a stranger story of its own.
New chapter every two weeks on Sundays ~11PM CET (Central European Time).

Notes:

This is a Twilight AU where Bella is not a “pretty mermaid”—she’s half-Meir’ha’dun, a cold-adapted deep-sea shapeshifter with sonar, sharp teeth, and a father who’s 6,000 years old.

Expect: alien biology, cultural miscommunication, a slow burn between two very repressed creatures, and one truly unfortunate tuna sandwich.

Canon-divergent but emotionally faithful. Charlie Swan is a legend. The fish jokes are intentional.

Rated mature for themes of identity, transformation, and some weird merfolk biology. Not an explicit fic, though mermaids may discuss things they probably shouldn't over lunch.

Thank you for reading!!!!

⚠️ Please read end notes for important information! ⚠️

Chapter 1: Prologue: When I Was

Notes:

(See the end of the chapter for notes.)

Chapter Text

PROLOGUE

When I was but a concept, there was Renee and Charlie.

She was all bare feet, sunscreen, and chaos. He was tidewater stillness and ancient silence. She talked too fast, laughed too loud and was human. He blinked like a glacier shifting and was a member of the Meir’ha’dun. Somehow, they made it work—at least for a while.

They met on a beach she wasn’t supposed to be on, and he wasn’t supposed to leave. But love makes fools of everyone, even creatures who remember the Ice Age.

She used to tell me, “He was the most beautiful man I’d ever seen. Even when he wasn’t fully a man.”

He used to say, “Your mother could talk a storm into changing direction.”

That’s how I was made. From a kiss beneath the waves, and an understanding that didn’t need translation.

 

When I was born, I looked human.

Mostly.

Ten fingers, ten toes. Brown eyes like Charlie’s human form, lungs that screamed on schedule. There was a weird mark on my side that pulsed under moonlight, but the doctor said it was probably just a birthmark.

Charlie didn’t say much. But I’ve since seen him look at tsunami clouds the same way.



When I was one, they separated.

My mother cried. My father didn’t—he never does—but I think he stopped singing in the ocean for a long time. I didn’t understand any of it, but I do remember the silence afterward. That thick kind of silence people leave behind when they love each other and then can’t.

They said it was better this way. For me.

Better to live on land and visit the sea. Better to learn to walk before I learned to dive.



When I was three, I saw Charlie shift.

He was holding me in the shallows off La Push, floating with the current. One minute he was just my dad with calloused hands and a low voice—and then the next, his arms stretched longer, his back arched strange, and his legs disappeared in a glint of pale fluke.

He looked at me with silver eyes, not brown. I giggled and smacked the water. I thought it was a game.

Renee did not think it was a game.



When I was five, I screamed—and the windows shattered.

My parents were fighting. They thought I was asleep, but I wasn’t. Their words didn’t make sense, but the tone did. I got scared. Not tantrum-scared—deep, cellular scared. I opened my mouth and let something out that wasn’t a word. Glass cracked and fell like rain.

No one touched me. No one yelled.

Renee didn’t sleep for three days.

Charlie went back into the sea and didn’t come out for a week.

I got ice cream.

Also a pet fish.



When I was seven, I woke up glowing.

Like… actually glowing. Blue. From inside my stomach. I thought I was dying. My mother thought I’d swallowed a glowstick. Charlie calmly said it was a “developmental milestone.” Like teething.

Renee started keeping me away from swimming pools.

My teacher asked the class which parent we looked like and what they did for work.

I proudly said, “My dad is the chief of police. He has bioluminescent spots and webbed hands like me.”

Mrs. Capen called my mom in for an emergency parent-teacher conference. Renee brought donuts to soften the damage. It didn’t help.

The teacher decided to teach about mythical creatures for fun and I bit my lip to keep from correcting her on everything. Well, mostly the underwater stuff.



When I was nine, I held my breath for six minutes.

Didn’t even notice. I was reading underwater—Jane Eyre, the salt-crinkled copy from Charlie’s shelf. The book didn’t make it. The pages flaked apart like old coral. I cried, and Charlie laughed for a solid three minutes before offering to read it to me from memory.

I still don’t know how he remembers that much. I forget where I leave my toothbrush.

I got bullied for having ghost-pale skin. One kid sarcastically asked if I was allergic to the sun or just undead. I laughed so hard I snorted in front of everyone, and then muttered something about sunscreen being my only religion.

They backed off. Humor is a great shield—especially when you know you could make them drown themselves if you sang loud enough.



When I was eleven, the ocean started talking back.

Not in words. In clicks and pulses and waves that curled just for me. I started to understand what the barnacles were whispering. I started to hum back. Charlie said I had an accent.

Also that year, I could hold my breath for over thirty minutes. So Charlie took me out past the kelp beds. Not too deep, just deep enough. He strapped goggles on my face, held my hand, and showed me the shadows gliding below us.

A pod. A hundred of our kind.

They looked more alien than I’d ever imagined. Long, silver bodies, glowing in pulses, twisting through the dark like light made liquid. I’d always imagined something more… human. They weren’t.

I didn’t speak for an hour after.

Then I asked Charlie if they were looking at me the way I was looking at them.

He said, “No, Bells. They already know who you are.”

My mother asked if I wanted to join theater.

Weeks later I was still thinking about the alien look of our kind, I asked if I’d ever get to choose.
I meant: could I be normal? Could I stay on land? Could I go to prom one day without bioluminescence showing through my dress?

Charlie said, “Some tides turn slowly, Bells.”

He meant no.

But he didn’t want to break my heart with it.



When I was thirteen, I screamed without opening my mouth.

It happened during a history quiz. The classroom was too loud — pencils scraping, desks creaking, someone whispering. I wanted quiet. I wanted stillness. Instead, something… burst out of me.

A sharp click echoed inside my skull, and I flinched so hard I knocked over my desk. Every head turned. I couldn’t breathe — not because I needed to, but because the noise was still ringing through me.

It felt like I’d slammed my brain against a wall made of mirrors. I had a migraine for three days. A crow exploded out of the tree outside my window when I twitched in my sleep.

Charlie didn’t ask questions when I showed up that weekend. He took one look at me — pale, squinting, still flinching from fluorescent lights — and told me to grab my wetsuit.

We swam out past the shelf, deeper than I’d ever dared go. Then he took my hands, nodded once, and signed, “Try it again.

I did.

Underwater, it didn’t feel like shattering. It felt like singing. Like I’d dropped a thread into the ocean and it came back with answers.

Shapes bloomed in my head — the smooth sweep of a ray’s wings, the curled arms of a sea anemone tucked in a rock cleft, the slow pulse of something huge far below. I felt the distance between my body and the world shrink until I could taste the direction of fish scales and the silence of stone.

When we came up, I gasped and whispered, “I saw it all.”

Charlie just smiled and said, “Welcome to your second set of eyes.”

After that, I couldn’t stop listening — above water, below. It wasn’t just a sound anymore. It was home.



When I was fifteen, I started shifting.

Just a little. A ripple across my ribs. Spinal ridges under the skin. Cartilage where bone had been. My lungs expanded weird, like balloons in reverse. The first time, I thought I was dying. Screamed like a dying whale. Charlie had to talk me down through echolocation and a lullaby only half of me understood.

He didn’t panic. Just said, “It’s okay, kiddo. Your tail’s just remembering.”

I did shift back. Eventually.

Clothes did not survive.

Later that year, Charlie took me deeper. Far enough down that the pressure buzzed in my teeth. We moved through cold layers and electric silence, and I got my first up-close look at my kin.

They didn’t laugh. They didn’t wave.

They flicked through light patterns too fast for me to follow and moved like they were part of the current.

They weren’t human. Not in mind, not in mannerisms, not in expression. Watching them, I realized something I hadn’t dared ask before:

Would I ever belong down there?

 

On the next holiday visit, Dad sat me down after dinner, a serious look in his eyes. “Bella,” he said, “there’s something new in town. Something... different. Not just the usual people you see every day.”

I blinked. “Like the Meir’ha’dun?”

He nodded slowly. “Not exactly. But like us, they have to hide. We aren’t the only ones keeping secrets.”

I pressed him for more, but he just smiled sadly and said, “You’ll understand more when you’re older. For now, just remember: you’re never really alone in this world, even if it feels like it.”

That night, I dreamed of shadows moving beneath the trees—pale figures watching from the darkness, moving at inhuman speed, waiting for the right moment to reveal themselves.



When I was sixteen, the whales beached themselves.

Thirty-two of them. All washed up on a cold Washington shore. I found out arriving home from school—Renee on the phone, sobbing, frantically trying to reach Charlie. Her voice had that sharp edge it gets when she’s terrified but trying not to show it.

For hours, I couldn’t breathe. I pictured him there—his body stranded, waterless and wrong. I imagined strangers cutting him open to see what he really was. I imagined the news crews catching his faint glow on camera and scientists asking questions they had no right to ask. I imagined them coming for my mother and me.

Then, finally—he called.

His voice was calm, but cracked under the surface.

“Sorry, Bells,” he said. “I had to get there first. Had to make sure they didn’t find… too much. Had to bury who—and what—I could.”

That was the first time I heard him cry. Not with loud sobs or broken cries. Just quiet, leaking grief through his silence.

Later, we learned it was sonar testing—military interference. Charlie already knew. He’d seen it before, further south. He said most of the pods managed to escape in time. But not all.

That was when it hit me—how dangerous it really is to be like me. To be something the world refuses to believe exists. And how far he was willing to go to keep us safe.

 

 

When I was seventeen, my body stopped pretending to be human.

Phoenix became a microwave and I was the popcorn bag. My skin stayed cool to the touch, its usual 93.2°F but my insides felt like they were trying to steam-cook me from the bones out. I got dizzy. My nose bled in the middle of math class. I puked food and blood on the school nurse’s shoes.

Renee didn’t cry this time. She just nodded, made sure the nurse's shoes were destroyed, packed my suitcase, and bought me a one-way plane ticket to Seattle.

I hugged her at the gate and said thanks.

She said, “Go find your people.”

And then, a beat later, “Tell your father I still think flukes are creepy.”

We laughed and pulled dying fish faces at each other, much to the bemusement of the people around us, until she was out of sight. I wondered when I would see her again. I couldn’t help but feel that she was finally free, free to pursue the life she’d dreamed of since she was my age.

I traded cacti for cedars. Dry heat for wet fog. A closet of tank tops for about six sweaters that all smelled like fish guts after my first swim. And I moved into a house with salt-stained floors, bioluminescent nightlights, and a dad who may or may not be able to kill a bear with his tail.

I didn’t fit in Phoenix. And I didn’t exactly fit here either.

Not yet.

But I’m getting closer.



When I was born, I was almost human.
Now I’m not sure what I am.

 

Notes:

93.2°F = 34°C

🏠 We now have our very own our digital pod!
Swim on over to saltblood.wordpress.com to uncover:

🐟 Edward’s suspiciously gourmet tuna recipes (we don’t ask questions, just eat).

🐾 The true story behind the Lawn Terrorist (RIP climate negotiations).

🗺️ A living map of story locations — because even sea creatures need GPS.

🧛‍♂️ Meet the Cullen Chaos, the Swan Shenanigans, and the Meir’ha’dad Files (mustache not optional).

✨ Behind-the-scenes lore, secret rituals, pod etiquette, and why bioluminescent side-eyes are a love language.

Oh — and there’s a newsletter now!
It’s called The Pod Call, and if you sign up, you’ll get story updates, bonus content, and exactly zero spam (unless it’s the edible kind served at awkward Cullen family dinners).

🚨 First newsletter will be sent Friday 26, September 2025 ~7PM CET (Central European Time).
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You'll be able to access the archive of all the newsletters you missed, with BTS and clues for various chapters.

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