For a second or two Cas didn’t say anything, and he realised he was still waiting for Sirius to step in, but Sirius wasn’t there to step in, he had to deal with it. "Go to your room right now," he ordered firmly. He wasn’t calm enough to deal with Jenny right there and then, he needed to calm Harry down and decide how he was going to deal with this. He felt the urge to Floo Sirius and ask for help, but he couldn’t do that, he couldn’t stumble at the first hurdle, he had to prove he could handle it.