It hadn't taken Terrence very long, because he knew what happened to Muggleborns. Muggleborns went to Azkaban, unless they were executed beforehand, and often died there, at the jail. He didn't know the exact details of K's mother's death, which might be a problem... or a small mercy. He wasn't sure which.
He stepped inside, offering Quaffle his fingertips to sniff as he walked by. He did like her dog, though he was rather surprised that the dog didn't hate him, now that he thought about it. If all he cared about was whether Terrence would hurt K, though, he supposed it wasn't that surprising. He was a violent person, a killer, but he wouldn't hurt someone he considered a friend.
Well, except for having to be the bearer of bad news. He sat down on the couch nearby, glad that she was sitting and holding on to her dog, at least. That might make it a little easier to hear.
"It's not good news," he said, because the optimism on her face made something inside him twist unpleasantly. Fucking potion. "There's no easy way to say this, so I'm just going to. K, your mother is dead - she died about a year ago. In Azkaban."
Getting it out was probably supposed to make it better, like ripping off a bandage. But it didn't, not really. It was her reaction he was dreading.