Actually, it is my favorite episode of the series. Hope Winds of Winter (the book) releases this year so that I can see what is made up and what is real canon before season 7. Although I do like how the show has done things, even if they are different. I can see the wildfire the explosion being canon, but not how it is done in the series unless GRRM works some magic to get there. I also wonder whether or not Sansa will have a role with regards to Jon Snow in the books, hopefully and probably.