Here there be spoilers. If you have not read this book you shouldn't be reading this I thought a few thing that they changed were interesting. First thing is it seems "the Others" will be refered to as "the White Walkers". I like the move for television because viewers may not pick up on just who "the Others" are. Easy enough. They changed the way the epiloge resolves although it doesn't matter very much. Royce still dies but without putting up a fight. The wrong ranger survived the encou