This cat is belongs to the Hogwarts caretaker Argus Filch in the Harry Potter series by J.K. Rowling
. She is a "scrawny, dust-colored creature with bulging, lamplike eyes just like Filch's. She patrolled the corridors alone. Break a rule in front of her, put just one toe out of line, and She'd whisk off for Filch, who'd appear, wheezing, two seconds later."