Vespan

Vespan was a honorspren recognized by the Stormfather in Ishar's pavilion. Dalinar and his men had found strange looking corpses there, and soon realized that the corpses were dead spren.
While it shouldn't be possible that spren manifested like that in the Physical Realm, Ishar seems to have experimented with bringing spren there. In his ledger, it said that they only lasted a couple of minutes before their physical form collapsed, with honorspren lasting the longest.
==References==
Category:Spren
Category:Magical Creatures