“Oenanthotoxin specifically,” Harry said. “It derives from hemlock water-dropwort plants, which grow in Minnesota. Accidental or intentional ingestion results in common poisoning symptoms—dizziness, nausea, convulsions—and quickly leads to a death with one uncommon quality: a muscle spasm which freezes the face into what looks like a wide smile.
Am I the only one completely fascinated by this? Science is cool.
