Who was the Dark One behind the mask that turned Merlin into a tree? Is Emma's heart ready to be rid of the darkness, or is she starting to like the taste of darkness already? How does teaching Rumplestiltskin how to sword-fight make him a hero? They kept telling how Henry was a hero throughout the episode, will he be the one to pull the Excalibur from the stone? Listen to our full discussion as we looked deeper into the episode, Dreamcatcher!