Fortniteis known to be the “kitchen sink” of video games, meaning that it’s welcoming to any and every crossover that’s open to the opportunity.Fortnitecollaborations aren’t limited to just Marvel and DC Comics properties, but includeBorderlands,Ghostbusters, PlayStation, Xbox, FIFA, NBA, NFL, Twitch streamers, and many, many others. NowFortniteis teasing its next collaboration and it may be one of the most niche and nerdy partnerships yet.

The teaser from Epic Games was shared mid-day Thursday via the officialFortniteTwitter account. The tweet features an image, which includes a few different interesting elements. First, there’s a mysterious symbol that looks like a fantasy rune. Second, there’s a quote that reads, “You’re the one they call the Survivor; those scars on your arms give you away. You’re a troublemaker.” Lastly, there’s aFortnitelogo, which makes clear that this is aFortnitecollaborationin the works. The collaboration partner isn’t outright revealed, but fans of the collaborator will recognize both the symbol and quotation relatively quickly.

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The symbol represents the Allomantic metal of iron and the quote is taken from authorBrandon Sanderson’s bookMistborn: The Final Empire. That’s the first book in theMistborntrilogy, Sanderson’s best-known work and a project currently being pitched for a film adaptation. In theMistbornbooks, Allomancers are able to “burn” certain metals that grant them magical powers. The power of iron, for example, lets Allomancers “pull” on metal objects to move either themselves or the object being pulled on.

AFortnitecollaboration with Sanderson’sMistbornbooksis a curious and exciting endeavor. Being prose, there are no real visual aspects of the book forFortniteto pull from directly. As such, Epic Games will be able to have fun creating skins and other crossover cosmetics fromMistborn. A tasseled cloak is perhaps the best-known visual, though giant blue Koloss and Inquisitors with metal spikes driven through their eyes could be options, too.

What’s most exciting, however, isn’t the opportunity for cosmetics. Rather, aMistborncollaboration could addnew magical gameplayelements instead. Players could use Allomantic metals to perform incredible feats, whether it’s flying, pulling objects toward themselves, becoming physically stronger, or slowing and speeding up time. There are a lot of options available to Epic if it wants to go all out tying into theMistbornbooks.

No timeframe has been provided forFortnite’s collaboration withMistborn. If it’s a simple cosmetic partnership, it could drop anytime. If it’s a bigger crossover involving changes to the game itself, it could come with the start ofFortnite’sChapter 2 Season 7which happens the week of June 7. Expect more information in the coming days and weeks.

Fortniteis available now on PC, PS4, PS5, Switch, Xbox One, and Xbox Series X/S.