"Here," Ron said, when Luna finished talking. "I'll be right back."
Ducking only momentarily into the hallway, he came back and told her, "They'll be in with another potion soon. It will help." And he couldn't help but smile when she asked about the Lestranges. "Yeah. Rabastan Lestrange died. So did Thomas Nott, and Thorfinn Rowle." He didn't mention that he was the one who had killed Rowle. It was still an odd thought to him.
"And we took several others into custody. Depleting their numbers a bit."