How is the world one way when Sydney and Regina could easily communicate?
I assumed based on when EQ allowed herself and Henry to see Regina and Emma through the mirror, that meant he could also hear them at that point. So apparently with magic, one can allow those trapped in the mirror to communicate with those outside the mirror, but this magic only works when you’re outside the mirror because of the no magic rule in Mirror World. EQ must have used that magic back in the EF with Sidney. It’s still strange and wasn’t clear at all.