“They had spent whole summers collecting other ingredients from the forest— micah, chalk, the resin of a pine tree, lichen, some wax, and a drop of dew. After a long and belabored search, Penelope had even discovered some locust wings in the piles of dust beneath her father’s unkempt desk. She had been mixing strange scientific and alchemical potions with her father for as long as she could remember.”
Book:The Measure of Gold