Old World poisons traditionally had a peculiar taste or stench until the development of arsenic in the Border Princes. Discovered in the nearby foothills, miners found an odd crystal deposit they called ruby sulphur. Shortly after it was taken from the mines, it changed colour and disintegrated into a harmless powder. Later, an Araby alchemist realized a connection between the often-sudden transformation and the presence of light, finding that the amount and intensity of light affected the rock’s rate of decomposition. Curious, he brought back a sample under the cover of night to his laboratory. After conducting a series of tests, he melted the stone down and when it dried; what remained was a strange white powder. Using the normal testing, he found the powder lacked an odour, taste, and w