Scully's analysis of the blood information shows the presence of ergot. Her explanation of the matter is succinct but correct. Ergot is a fungus that contains hallucinogenic alkaloids (LSD was originally discovered in ergot derivatives); it grows on grasses and grains, including wheat, barley and rye, from which it finds its way into flour and thence into baked goods. Scully mentions that the red tattoo ink was made from rye. It has been suggested that the hallucinations which resulted in the accusations leading to the 1692 Salem Witch Trials were the result of ergot poisoning. Records of outbreaks go back 1200 years, and have occurred as recently as 2001.