Merlin actor Colin Morgan reflects on filming the episode “The Dark Tower” in a new video, and you can also watch the promo for next week’s “A Lesson in Vengeance”!

Were you surprised by Guinevere’s unexpected alliance with Morgana at the end of “The Dark Tower”? We definitely were! Hopefully that will all work out okay in the end, though the promo for next Friday’s episode doesn’t look promising:

SyFy has also released a video interview with Colin Morgan (Merlin), who reveals some surprising behind the scenes secrets:

Morgan admits that it wasn’t the most fun episode to film, as he and the knights had to fight their way through the impenetrable forest. “We were knee-deep in mud for a few days,” he explains, “and it was a really tough one to shoot. But on paper it was a really exciting episode,” he adds, as it had a lot of fairytale elements to it. “A queen imprisoned in a tower, knights going to rescue her, and pixies, and a crazy magical forest… it was definitely very Princess Bride-y,” Morgan says.

How are you liking this season of Merlin so far? We’re just about halfway through now – not long until the series finale!

Merlin 5×07 “A Lesson in Vengeance” airs next Friday at 10/9c on SyFy.