Wildfire

Wildfire is a dangerous liquid which is created and controlled by the Alchemists' Guild, an ancient society of learned men boasting arcane knowledge now based in the city of King's Landing. It is a highly volatile material which can explode with tremendous force and burns with a fire that water cannot extinguish, only large quantities of sand.

Wildfire is identifiable through the distinctive green hue of its flames. Even in its stored liquid state it gives off a green color. Pyromancers refer to it as "The Substance", while in the lowest circles it is derisively referred to as pyromancer's piss.

Wildfire plays a key role at the Battle of the Blackwater, during the War of the Five Kings.