Remember in Harry Potter, Harry always wondered if cats could see through the invisible mantle when Mrs. Norris looked at him? After all, they see, in the infrared spectrum, they see a warm body under the coat! And even if the mantle overlaps visibility across all spectra, how did they want to hide from the night predator? She has vibrations with which she feels the fluctuations of the air, ears with which she even hears their hearts beating, a nose with which she hears their smell, and can even feel what gender, age and state they are now (fear, for example), the organ of Jacobson is the same. Yes, the cat on the book should only put them in this way, wondering why did she not do it?