Clara Saved Her Heirloom Greenhouse With Three Simple Pantry Ingredients

” he said after a long pause. “The old brass microscope from the university.”

“What can a microscope tell us that we don’t already know?” I asked.

“If these beetles came from the wild, they should have natural variations in their shell thickness and color,” Frank said. “But if they were bred, there might be a marker.”

“We only have until continue reading …