Board Thread:Spoilers!/@comment-26159109-20160301190120/@comment-24674051-20160510043559

I doubt Henry could completely destroy magic. Severely weaken it, perhaps, but not destroy it. and keep in mind that the Apprentice (and probably by extension Merlin), the Dragon, and Emma were still capable of magic in the LWM. And that may be yet another potential plot hole explained, because clearly there is a small amount of magic available inthe LWM outside of trinkets that people could bring with them.