A rare and addictive drug derived from refined marrow that grants temporary magical power but accelerates calcification of the user's bones.
Grave-Sugar appears as crystalline white powder that glows faintly in darkness. When ingested, it grants spellcasters heightened magical abilities and non-magical users temporary access to minor spells. The effects last for hours but leave users exhausted and craving more. Long-term use causes rapid-onset Calcification Sickness, often killing users within months. The Bone-Gravers Syndicate dominates its trade, though some alchemists and desperate nobles maintain secret stashes. The Order of the White Candle treats possession as a capital offense.