He's talking to rocks now, Kernel says. A definite lunatic, Kirilli purrs.
In "Hell's Heroes" by Darren Shan, the characters discuss an individual who seems to have lost touch with reality, humorously remarking on his peculiar behavior. Kernel's observation that "He's talking to rocks now" implies that the person has descended into madness, suggesting a disconnect from the world around him. This shows the extent of his instability, reinforcing the idea that his mental state is a significant concern. Kirilli's response, calling him...