A strange dark sphere was given to Szeth by Gavilar upon his death, saying "Take this. They must not get it."[1]

The sphere is described as small, crystalline, and completely dark. It glows with a black light.[1] According to Brandon, the dark light of the sphere is something different and distinct, and is related to a Shard.[2]

It is said that this sphere is used to trap spren.[3]

Szeth hid the sphere in Jah Keved.[4]


Its Investiture is of Odium, like Stormlight is of Honor, by which Voidbinding is fueled. The light of the sphere can be referred to as Voidlight.[5]

Took claims to have stolen a similarly described sphere from the Nightwatcher.[4] The sphere may be related to Cultivation's magic system, the Old Magic.


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