Hang on, did she just say...? "Apparating?" He leaned in closer, lowering his voice to a whisper. "So you're a witch, then. Was it something magical, that brought me here? Was it... was it You Know Who?" Dean didn't know if Voldemort You Know Who had the kind of magic to pull off this kind of trick, or if such magic even existed, but it made about as much sense as any theory, and more than many others that raced through his brain.
"How is Neville here? Neville's at school, he's pureblood." And Dean thought maybe he'd been off when he guessed Lily's age, if she said Neville was older than her. "Hold on, son? Harry can't be your son, you're not nearly old enough!"
Then he finally registered what she'd meant when she said she was displaced fourteen years and he nearly sat back down in the snowbank out of shock. "You really are... You're Harry's mum. Oh my God..."