The Codex of Compound Planes

A cosmological treatise, written in the DR 1500s, by Airion the Mistspeaker

The Codex of Compound Planes is a work by Airion the Mistspeaker on compound elemental realms. Airion claims that careful experimentation with planar travel revealed secondary elemental energies, including Frostfell, Pyreforge, Miredepths, Smokeshroud, Cloudmere, Bloomswell, Ashspire, and Ironroot.