Board Thread:Show-Related Questions and Answers/@comment-25926288-20160219214913/@comment-28035154-20160328193020

JMXD96 wrote: What I believe happens is that for things like August's leg, the door the Apprentice summons and probably even glamor spells the people who don't believe subconsciously filter out the magical properties just like how Emma saw August's leg as a normal leg.

However with things like fireballs and teleportation where the brain can't come up with an excuse the person is forced to see it whether they believe it or not. Odds are that is part of it. Another explanation is that things originated from lands with magic are cloaked from the LWM while spells cast or objects created in the LWM can be seen by people from the LWM.