Who is graybeard in the boy of the painted cave?

Graybeard is a wise and respected elder in "The Boy of the Painted Cave" by Justin Denzel. He serves as a mentor to the protagonist, Tao, guiding him in his artistic journey and helping him understand the significance of his talent in the context of their prehistoric community. Graybeard's character embodies knowledge and tradition, emphasizing the importance of art and storytelling in their culture.