Roxanna nodded eagerly. "There should be a lot of ways to make them. White might be a little difficult, but for brown… we can probably use different kinds of soil or clay. Gray might be possible if we mix something dark with something lighter."
Roxanna quickly opened the book again and began flipping through the pages. She carefully looked at each picture until something finally caught her attention.
"This one!" Roxanna suddenly exclaimed, pointing excitedly at a picture of a pale-colored rock. "I think I've seen something like this near the river."
Luan leaned closer and looked at the picture. "You mean this white rock?"
"Yes!" Roxanna nodded eagerly. "There were a lot of them near the shallow part of the river. If we crush them into powder and mix them with the right ingredients, maybe we can use them to make white paint."
