Hermione forced her face to remain neutral and offered a slight nod, though inside she was seething. Her jaw clenched so hard, she swore she heard her teeth creak. She stood stock still for a full minute while Ron and Harry went back and forth about the merits of contacting Sirius before she was able to fully shake off the annoyance. If these children could not appreciate her attempt to help, she was going to stop offering it.