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Alloys and Shards: The Adventures of a Twinborn on Roshar

Summary:

Pretty much what the title says.

When Shallan activates the Oathgate to Urithiru during the collision of Highstorm and Everstorm, due to the sheer amount of Investiture focused in one place (on top of the remnant Investiture from Honor and Odium shattering the Plains millenia ago), it bleeds through Shadesmar onto Scadrial. Kadar, a Twinborn exploring the edges of the Roughs in the era of Wax and Wayne, gets caught in the resulting Storm and is yanked through onto Roshar. He wakes up under guard in Urithiru with many questions. Where is he? How did he get here? What language are they speaking? And what is going on with their weird light powers?

Follow Kadar and his Windrunner guard friend, Talien, as they journey through Roshar on a quest to get Kadar back home. But Odium is interested in this new player, and it's not quite as simple as hopping back through Shadesmar...

Notes:

Disclaimer: I don't own The Stormlight Archive, the Mistborn series, or the Cosmere and don't claim to, they all belong to Brandon Sanderson. I'm not making money off this. Etc.

Will not be frequently updated! Probably, unless Calliope (Greek muse of writing) decides to bless me with Inspiration

Chapter 1: Prologue: Patterns of Light

Notes:

The title of this chapter (and some of the first couple lines) are directly pulled from Words of Radiance.

(See the end of the chapter for more notes.)

Chapter Text

Shallan shoved the rotating wall into place, then pulled her Blade free.

The ten Stormlight lamps faded like closing eyes, leaving just the flickering oil lamp one of the scholars had brought.

Shallan slowly exhaled. She turned around– and froze.

“Almighty above,” Adolin whispered.

There was an extra person in the room with them.

He lay crumpled in the center of the mosaic like he had collapsed there, golden-iridescent Stormlight rising from his form like smoke. It was thick and hard to see through, but quickly thinning.

“Um, Brightness?” Inadara started hesitantly.

“Yes, Inadara?” Shallan asked, her voice remarkably steady.

“Who is that?”

“I don’t know, Inadara.”

Shallan cautiously approached, kneeling next to the stranger. She reached out, gently rolling him onto his back. The strange Light tingled as it touched her, and she couldn’t draw it into herself like she could with normal Stormlight.

The mist was almost gone, only a heat haze in the air now, and she could see the man’s features clearly. He looked like… well, he looked like no one she’d ever seen before. He might have been able to pass for Alethi, with similar dark tan skin, except he had a more rounded face and dark brown hair. Thaylen, almost, but without the long eyebrows. He wore simple traveling clothes and boots, with a belt that held vials of… she couldn’t tell what was in them. A couple bluish-white metal studs pierced his ears. He was soaked, clothes and hair plastered to his body, and shivering with cold.

The man didn’t stir as she touched him, breathing shallow, though his pulse was fast when she checked it. Shallan hesitated, then stood up. “Let’s get out of here,” she said, nodding to the crem-blocked opening in the structure. “We can inform Dalinar of what happened and have him deal with this.”

Adolin frowned, but nodded, summoning his Shardblade and moving toward the doorway.

Notes:

318 words. Posted June 16 2026.

I literally came up with the overarching plot while writing the summary, lol. I had no idea beyond the first chapter or two but now I think I have something interesting... SO looking forward to when Kadar meets Wit

The golden Stormlight is supposed to be like, Harmony Investiture or something. Idk.

It took me literal weeks to decide on this beginning, lol. I had like 5 I could have done but ended up picking this one.

Same as my other story, it'll probably be a bit till this updates. I want to plot some stuff out, and I'll be busy. I'm also not the best consistent writer, maybe having people waiting for updates will help me write more...