[She clicks her tongue, absent, as she thinks.]

Possible, I guess. I can't think of a way to check, but I wonder if people they know who they didn't come into proximity with forgot them during the same period. Is it something that hits you, and then somehow reaches through you to everyone you've ever met? Or sort of an aura you need to be within a certain distance of to be affected by?

We're unfortunately way out of my depth, though. We may need to loop in someone with some magic experience to weigh in on the logic or lack thereof.