"I hadn't realized," he said, but it hardly seemed time to pursue whether Regulus considered himself a visitor or an exile.
"I hope you called someone anyway," he said, getting back to the more critical issue. "You know you have three Gryffindors who'd come if you asked, and then Gaius, and I've no idea who else." He remembered Harry telling him angrily that Regulus wasn't social. "I assume there are friends I don't know about."