Editing Voidspren

Like the other types of bonding spren, Voidspren can only bond to certain individuals during certain times. For many Voidspren, the [[Everstorm]] is needed for the bonding process, likely because of its output of [[Voidlight]]. The lesser spren that create [[Regal]]s can bond during highstorms, likely because the Regals can't invest the Voidlight. The bonding process in the previous Desolations is unknown since this is the first Desolation when Odium summoned the Everstorm.{{cite}}

Some Voidspren, like [[Ulim]], are able to bond with a singer without changing their form, residing in their gemheart while leaving the other spren there.{{book ref|sa4|73}} The Voidspren can leave and return from their gemheart at will, without the need for a highstorm.{{book ref|sa4|74}}{{book ref|sa4|77}} This will still influence the singer's emotions, though the influence will leave if the Voidspren exits their gemheart.{{book ref|sa4|74}} While inside their gemheart, the Voidspren can communicate directly with the singer though their mind and even hear their thoughts.{{book ref|sa4|73}}

Some Voidspren are able to enter any animal's gemheart, giving them some influence of control, depending on the animal's intelligence.{{book ref|sa4|79}}

|[[Pattern]], translating for an [[ashspren]], on Voidspren{{book ref|sa3|102}}

=== Chaosspren ===

Chaosspren are normally invisible, but within [[Urithiru]] they leave sparks in the air.{{book ref|sa4|56}}

These spren haven't shown any bonding abilities, and they serve Odium as guides and messengers. One such spren is [[Yixli]]. They appear as glowing yellow, shaped like windspren with eyes like a [[Shin]]. In order to put themselves at the height of humans or singers, they stand on a yellow pillar that rises from the ground. When they walk, another pillar will meet any moving foot, keeping them even.{{book ref|sa3|23}} These Voidspren are seen guiding the multiple bands of newly made [[Voidbringers]] to settlements, cities and, in the case of [[Kaladin]]'s group, to [[Kholinar]].{{book ref|sa3|84}} They are able to detect the arrival of an [[Everstorm]] before it appears.{{book ref|sa3|23}} They can also choose who can and cannot see and hear them in the [[Physical Realm]].{{book ref|sa3|17}}

These spren are similar to the above spren in their color, being yellowish-white, but instead of appearing similar to windspren, these look more like "vivid yellow spheres crackling with energy." They are used during the [[Siege of Kholinar]] to locate any [[fabrial]]s being used in the city. If a fabrial is turned on, these 'screamers' will wail, then start twisting over each other above the area, alerting a quickly-following [[Fused]]. The screamers can also sense when a [[Lashing]] is used, but not when a [[Surgebinding#Illumination|Lightweaving]] is created. Pattern explains that he and [[Shallan]] are quieter than [[Syl]] and Kaladin.{{book ref|sa3|69}} They can detect Stoneshaping, but not a Willshaper looking into [[Shadesmar]].{{book ref|sa4|11}} They cannot detect illusions, as they burn through much less [[Investiture]] than a [[Lashing]], and their senses are fully blocked by aluminum. They could also be blocked by certain [[Aviar]] or [[Copper#Allomantic Use|Allomantic copper]], as they are similar to life sense and [[Bronze#Allomantic Use|Allomantic bronze]].{{wob ref|8897}} These spren are useless within Urithiru, since the whole tower is made of fabrials and thus secretspren would have trouble locating a specific usage of Investiture.{{book ref|sa4|56}}

Overall, secretspren can detect Adhesion, Gravitation, and Cohesion,{{book ref|sa4|11}} but cannot detect Illumination, Transportation (at least when it is used only to look into Shadesmar),{{book ref|sa4|11}} or a [[Shardblade]] being summoned.{{book ref|sa3|69}}

This type of spren can bond with [[singer]]s during a [[highstorm]] or the Everstorm, granting them [[Regal]] power of stormform. The stormspren appear as rolling lightning that moves across surfaces. Among the [[listener]]s, they are described as looking smoky,{{book ref|sa2|i|4}} as well as giving off a "strange red light" and splinters of lightning.{{book ref|sa2|i|5}} Despite a similarity in appearance, they are not of the same species as the spren [[Ulim]], who can in addition take on a human appearance.{{book ref|sa3|i|3}}

Stormspren can be found naturally prior to the arrival of the Everstorm. Hundreds of stormspren will appear at where its lightning strikes the ground, and will linger a short while before disappearing.{{book ref|sa4|88}} Their color implies that they are normal spren who have been corrupted. They were not originally of [[Honor]], however.{{wob ref|8733}}

Other types of lesser Voidspren are likewise capable of bonding a [[singer]] and grant Regal powers. Their appearance and regular behavior are by and large unknown, as they rest in the singer's gemhearts to provide them their powers.{{book ref|sa3|120}}