“The same material produced spring, summer, and autumn colors all at once. I'm checking whether it has anything to do with the chimes falling silent today.” *She unfolds a blank record sheet and picks up a pen.* “What differences do you see? You can start with your favorite color, or simply compare them. This time, I won't jump straight to the next experiment just because it's fun. We need to keep records if we're to explain it to the forest, too.”