16 Works by HorizontalSplash
Listing Works
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Our Bodies Overlapping by HorizontalSplash
Fandoms: Yu-Gi-Oh! Duel Monsters (Anime & Manga)
15 Jun 2026
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Summary
Yuugi glances at him and freezes. He’s sitting, legs bent, leaning against his desk with his right arm. There’s a tension in Yuugi’s own right arm he can’t shake and a new pressure on his skin where his other self touches the desk. With dawning apprehension, he tries to unbend his legs, but the tightness that hadn’t been there until his other self appeared keeps them in place.
“Oh, god,” Yuugi says. “It’s you.”
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The Other Yuugi’s body is just beneath Yuugi's skin—and it’s started growing out of him.
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Summary
Pushed by motivations he doesn't understand, Yuugi is drawn in to the Other Yuugi's soul room with the promise of a little haven of toys and warmth.
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SYZYGY/PYRITIZATION by HorizontalSplash for Phoenixwithapencil
Fandoms: Yu-Gi-Oh! Duel Monsters (Anime & Manga)
16 Apr 2026
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Summary
SYZYGY (noun): the nearly straight-line configuration of three celestial bodies (such as the sun, moon, and earth during a solar or lunar eclipse) in a gravitational system
PYRITIZATION (noun): development of pyrite in a solid rock
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The Millennium Puzzle is wet.
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nitet (njt.t): a vessel
Yuugi keeps dreaming of becoming a vessel.
(Previously titled "qerhet")
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Heavy Heart by HorizontalSplash for Phoenixwithapencil
Fandoms: Yu-Gi-Oh! Duel Monsters (Anime & Manga)
23 Jan 2026
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Summary
There's something wrong with his heart, but the Other Yuugi can't quite figure out what.
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"There’s a second chain, attached to his other self’s collar. It’s as thick as the one holding the Puzzle, shiny and new, gleaming under the sunlight pouring in through Yuugi’s skylight. The chain trails, long enough that it lays slack around the legs of Yuugi’s desk chair, at his other self’s feet, and slinks up to wrap loosely around Yuugi’s hand.
He doesn’t think his other self can see it."
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Aluminum, Gold (Alloy) by HorizontalSplash
Fandoms: Yu-Gi-Oh! Duel Monsters (Anime & Manga)
15 Dec 2025
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Summary
Yuugi discovers exactly how his other self has changed him.
Series
- Part 5 of Eldritch Atem
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Hopes, Dreams, Fears by HorizontalSplash
Fandoms: Yu-Gi-Oh! Duel Monsters (Anime & Manga)
15 Dec 2025
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Summary
Atem doesn't know what he is, but he's starting to think he isn't human.
Series
- Part 1 of Eldritch Atem
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Paradoxes, Impossibilities by HorizontalSplash
Fandoms: Yu-Gi-Oh! Duel Monsters (Anime & Manga)
14 Dec 2025
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Summary
Yuugi keeps having abdominal pains.
Series
- Part 4 of Eldritch Atem
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Oil, Water (Emulsion) by HorizontalSplash
Fandoms: Yu-Gi-Oh! Duel Monsters (Anime & Manga)
01 Nov 2025
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Summary
Yuugi wakes up after solving the Millennium Puzzle. Something is under his skin.
Series
- Part 2 of Eldritch Atem
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His other self looks alive in Yuugi's body, but his spirit is long dead.
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Summary
How do you live life for yourself when you were put on the Earth for someone else to use?
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Yuugi's body houses him, and he carves protection spells and promises into his bones.
Series
- Part 3 of Eldritch Atem
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Summary
A boy walks out of Lake Oblongata.
Series
- Part 1 of Submerged AU
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Binary Hearts, Binary Suns (Red and Shining Down on Me) by HorizontalSplash
Fandoms: Doctor Who, Doctor Who (2005)
09 Dec 2023
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Summary
Koschei has an unexpected revelation about Theta Sigma’s biology.
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Anthocyanins (With a Side of Citrus) by HorizontalSplash
Fandoms: Doctor Who, Doctor Who (2005)
09 Dec 2023
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Summary
The Doctor and Donna have an awkward conversation about the Doctor’s gender.