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Abilities Nahel bond, Skybreaker magic, Splinter, Worldhopper
Bonded With Sigzil
Species Highspren
World Roshar
Universe Cosmere
Featured In The Sunlit Man
This page or section contains spoilers for The Sunlit Man!
This information has the ability to potentially ruin elements of the plot for the reader. Proceed with caution if you have not read this book.
This page or section needs to be updated with new information for The Sunlit Man!
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I'm no god. I work for a living.


Auxiliary is a highspren,[2] who is bonded to Sigzil.[3]


Auxiliary's personality before the Dawnshard killed him is unknown. The Dawnshard burned away most of his essence, including parts of his personality.[4][5] Due to this he lacks emotion, always talking in the same monotone voice.[3] He is self conscious about this however, and adds emotions where he thinks they should be. Instead of in the tone he just adds these emotions as words to his sentences.

While his death was caused by Sigzil, Auxiliary doesn't truly blame him for it, instead blaming it on the Dawnshard.[2] Auxiliary views himself as the Knight, and Sigzil as his squire.[6]

Attributes and Abilities[edit]

Although Auxiliary is a highspren, there are a number of differences between him and ordinary spren. This is because a Dawnshard burned away most of his essence.[5]

Because of this Auxiliary doesn't seem to have a presence in the physical realm, unlike other Radiant spren.[2] He is very aware of his surroundings however, often pointing things out to Sigzil.[7] Auxiliary has very precise knowledge of how much Investiture Sigzil has left.[8]

Auxiliary is capable of manifesting as a weapon or tool, only limited by Nomad's imagination and understanding of what he wants to create.[9]


Sometime after Sigzil bonded to his honorspren, Auxiliary bonded him. Sigzil is known to have sworn the Fourth Ideal of the Skybreakers.

In a moment of need Sigzil, carrying the Dawnshard, reached out for Investiture to protect himself, the Dawnshard found it in Auxiliary and started to use his essence to fuel Sigzil's abilities.[5] Sigzil was barely able to stop before the Dawnshard burned away all of Auxiliary.

During Sigzil's time on the run Auxiliary accompanied him.

At some point, Auxiliary took oaths and considers himself a Knight Radiant.[10]


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