Skystone is a naturally occurring crystalline element most frequently found at the extreme edges of the earth. So far we know of red or yellow varieties, with yellow being more potent + rare. Red skystone powers the Noble Jury and several Herald ships. Yellow skystone powers all Lounge vessels and Haman's goblin battleships.

Skystone is a high-value commodity which The Lounge devotes many resources towards mining and trading.

“Natural skystone deposits tend to fluctuate when they're being harvested...That, or being drained of energy.”[1]

  1. Yaerfaerda, ch. 88