Hermione made the decision that she was going to ignore Antonin's demands. She had every right as Oliver's mother to worry about him. Needing to see with her own two eyes that he was well and wishing to have a talk with the Headmaster while she was there, she made the journey back to Hogwarts. It was the middle of the day. She expected that most of the students were in classes and Temeritus Mulciber would have some time meet with her to discuss what was going to happen to Julia Lestrange next. She'd vote for expulsion and possibly arrest if given the option.