The Dune Encyclopedia
This article or section refers to elements that appear exclusively in The Dune Encyclopedia.
Ishkal is the fourth planet orbiting Sigma Draconis. It is believed that the word Shai-Hulud was first taken by the Zensunni Wanderers off this planet .
It was also the homeplanet of hulud.
Ishkal in Star and Planets in Frank Herbert's Dune: A Gazeteer.