Summary:Arcanum Unbounded
This page contains a summary of the essays in Arcanum Unbounded. We hope these summaries will provide a quick refresher for anyone who doesn't want to take the time to reread the entire book.
The Selish System
The Scadrian System
The Taldain System
The Threnodite System
The Drominad System
The Rosharan System
Roshar is the name of the continent of the second planet, the second planet itself, and the planetary system. There are three habitable planets and several gas giants in the outer system.
The first planet is called Ashyn and is only inhabited in small pockets.
Roshar is inhabited by humanoid and other creatures and have symbiotic relationships with Splinters. Humans with relationships with self-aware spren can Surgebind. Giant crustaceans are possible through a symbiotic relationship with spren.
Invested storms occur regularly and are very dangerous. The storms predate the arrival of Cultivation and Honor.
The third planet is called Braize and is too cold for humans. It is inhabited by self-aware Splinters.
The Rosharan system is the current habitation of Odium.