What is the chapter Rock Rats about in book Peak by Roland Smith?

The chapter "Rock Rats" in the book "Peak" by Roland Smith is about how Peak, the protagonist, and his companions are confronted by a group of rock rats while in the mountains. Rock rats are large mountain rodents that are known to be aggressive and territorial. The passage provides a vivid description of the rock rats as well as the tension that builds as Peak and his friends try to avoid being attacked by them. The group eventually manages to avoid a major confrontation, but the encounter shows the harsh and dangerous realities of the mountain environment they are in.