[OB] Azure and Nightblood in the Stormlight archives?

[ShardBreaker he/him]

I haven't read Warbreaker yet, but I know someone who has. He mentioned the connection between Azure and Nightblood to the Warbreaker series. I was just wondering if anyone has any input on this topic, such as how they might have gotten to a different world/ realm/dimension/whatever. If so just add your answer in the comments. 

[Nashan’Elin he/him]

[just fyi this title probably should have [OB] in the title, cause spoilers]

Until then I’ll just say this:

Read Warbreaker!

Until then: [Slight spoilers for Warbreaker and Oathbringer, as well as a spoiler for Mistborn: Secret History]

Spoiler

It is totally possible to travel between planets, like what those two did. It hasn’t really been shown directly in books yet, but if you’re read Mistborn: Secret History, the idea of how to do it can be seen there.

 

[CrazyRioter she/her]

We don't know. Brandon has said he might publish that story eventually but it could be quite some time.

[Weltall]

Let me chime in with another 'Read Warbreaker, you won't regret it!'.

As noted, travel between worlds isn't difficult conceptually. You can even get multiple hints how it's done in SA alone. Remember Rock's story about meeting Luna'anaki in Words of Radiance, how he appeared out of a pool in the Horneater Peaks? That's Hoid, Brandon's most obvious worldhopper and cross-Cosmere actor. Oathbringer confirms that the Peaks contain Cultivation's Perpendicularity. Other worlds have these Perpendicularities as well and they're areas where it is extremely easy to transition between the Physical and Cognitive Realms (Shadesmar as the latter is more commonly called on Roshar). Because space on the Cognitive is mapped to space in the Physical and is formed by thought, the areas where no thought is occurring (ie, the interstellar void) are compressed and it becomes possible to literally walk between worlds. There's more to it than that but those are the basics.

Azure confirms that she got to Roshar that way when she describes her last experience with Shadesmar. Now, one thing we do not know from Warbreaker is where that world's Perpendicularity is located, but we know it has one so travel from Nalthis to Roshar is indeed possible. There are also a couple of other characters from other worlds that you might be able to spot if you look for the clues.