In Jennifer L. Armentrout's book "Onyx," the character Kitten is confronted with a blunt remark about her thoughts, described as "a terrible and dirty place." This quote highlights the inner turmoil and complexity of Kitten's mind, suggesting that she grapples with darker, possibly indecent thoughts that conflict with her outward persona. It reflects on how personal thoughts can often be at odds with how one presents themselves to the world.

This observation adds depth to Kitten's character, revealing her struggle with identity and self-perception. It portrays a theme of inner conflict, emphasizing that even those who appear composed may harbor unsettling thoughts. Armentrout skillfully illustrates the multifaceted nature of the human experience, prompting readers to consider the disparities between external appearances and internal realities.