The other patron ignored Hermione. She may as well have not even existed. There had been a time when that kind of treatment would have bothered her, but not any longer. Invisibility was a superhero power she would have loved to have. Even simply borrowing Harry's invisibility cloak would have been enough. She wasn't sure where that ended up after the war. Likely some sycophant discovered it and turned it into Lord Voldemort for an extra measure of favor. It didn't really matter. The cloak was just another remnant of a past that was better left forgotten.