First time poster and I'm so confused at the direction season 5 is taking. I loved the acting in this episode - fantastic! However, there are only eight episodes left to bring this story to a conclusion. It appears right now that the situation is hopeless and that Merlin's wish to restore magic is at its lowest point ever. I know that it is typical in storytelling to bring the hero to the brink of hopelessness and then eventually he overcomes all obstacles to "win" in the end. With eight episodes left, I'm not sure I can see how this is going to be possible? Right now, Arthur appears to not be willing to accept magic back into Camelot, and his past and present experiences have taught him to see only the negative aspects of magic. If/when Merlin reveals he has magic, I can't see Arthur being accepting of this.
Also, in regards to Mordred in the episode, he has shown no secret hostility to Merlin or Arthur, and at the end of the episode, I also didn't catch any anger towards Arthur. He's a really likable character. So, as I said in the beginning, this episode, while was very dramatic and wonderfully acted, just leaves more questions than answers, imo.