AVClub: Sometimes it seems like Once Upon A Time gets tripped up over itself. I’m sure the show’s intentions are good, as our goal in this particular trajectory is “Find out a way to defeat Hades,” and here comes Killian’s brother Liam with the possible solution. One of the dumbfounding things about this arc so far is how these mere mortals (well, some of them are magic, but still) are supposed to defeat a god. So we learn about the possibility of the storybook; then just as easily that hope is dashed as Liam himself tosses the Hades pages away. It’s always one step sideways, two steps back with this show.