I know there is something different in tDT that has to do with the land where you dreams come true. I believe it is when they are leaving the darkness -the ending is more light in tone in the American version, and that is partly why it was changed. I think. (But don't quote me on that!) I haven't heard about Edmund/Edmond before, but I'm sure the other spellings are different. Wouldn't it be wonderful to own both versions?...
-Breka