OMGOMGOMGYOU'RESARAHWILLIAMSILOVEYOURMOVIE. Hi! I'm Kamala and I wouldn't worry! It's not a trap or anything but you're not where you were. Time won't pass so if you ever leave it seems that you return to the same place as you come from at least from what we can tell? Like others haven't ever noticed anyone missing if they come from a point in time after the other person so your brother should be fine. You end up rescuing him.