History of Sapphiric Converter

The Sapphiric Converter is a light-producing item in the lore of Rhulk. Before he joined the Witness, Rhulk killed Stalkers who had hunted his clan and took their supplies and equipment, including a Glaive and a Sapphiric Converter. The episode is recounted in the Shattered Suns lore book, which was added in The Witch Queen.