# [[Residuum]] Residuum is a green powder or dust, and it is the residue of arcane energy. It amplifies arcane objects and enchantments. We found it in: - one of the hand carts in [[The Errenath Estate]]. - between [[The Errenath Estate]] and [[Vuthos]], in a little cultist ritualistic cavern. Large shards of it had been used to refocus energy back into a circle. - [[Vuthos]], on the crates near where the giants were forging > [!NOTE] [[ttrpgs/Temporary White Circle/Residuum|Residuum]] > Although not inherently magical, residuum is particularly receptive to arcane energies and therefore may be used to create objects that retain more powerful enchantments, perhaps for longer periods of time.[2] It is used in the amplification of various forms of arcana.[3] It can also be utilized to replace and act as other expensive materials and components for spells and other uses.[4] Finally, it is one of two substances that can be refined into the drug suude, which can enhance spellcasting.[5] > > Raw residuum can be purified by heating into a dark green glass-like state;[1] in this form it is referred to refined residuum and displays stronger magical properties. A table topped with an enchanting slate made of residuum can greatly speed the production of all magic items; these slates are sold for at least 20,000 gp.[6]