Her response eases Derek's mind rather a lot, actually. It's a huge relief to know that they're not too far off from one another. It's been a little less than a year for him, too, but that's a much smaller gap than the one between he and Scott, so there's that. That's something.

He looks confused at her question. It takes him off guard when he's too busy momentarily being frustrated with the fact that Peter's out of Eichen House. Peter is his uncle and he's pack; he always will be, but that doesn't make it any less of a betrayal knowing that Peter killed Laura. That Peter basically authored the deadpool.

"No...?" he asks more than says. Because, okay, that's just weird. How and why the hell would he forget about his uncle?

Then Derek shifts gears abruptly, because why does it matter? They're here. "...what are you doing here?" he asks as he realizes aloud that he's here to protect Cora, but what's Malia's motivation?