What is a simile or metaphor in chapters 6-9 in Where the Red Fern Grows?

In chapters 6-9 of "Where the Red Fern Grows," a simile or metaphor could be found in the description of the bond between the protagonist, Billy, and his two dogs, Old Dan and Little Ann. For example, the author may use a simile to compare their loyalty to a sturdy oak tree, emphasizing their unwavering support for each other. Alternatively, a metaphor could be used to liken their friendship to a beacon of light in the darkness, highlighting the comfort and guidance they provide for one another throughout the story.