There is definitely something with water and magic.  This keeps re-occurring in almost any fantasy involving wizards and whatnot.  Now, I think George is not going for "water" as much as "salt water."  This although it may appear unrelated to the Others I think has to link with some of the Iron Islands beliefs and it is interesting their saying "what is dead can never die" which could point (in plain view) to dead creatures of power under their oceans.  George has said is not going to be involvi