LOL the Vikings were at their peak in the 900's, the Arthurian stories took place in the 500's,
over 400 years before.

This was nicely done. I don't know the original story but I'm assuming this is the "lady" that protects Excalibur in the lake. She did say she would repay Merlin, so I'm guessing the protecting is how she repays Merlin. ....Very good episode.

They were so cute together. She should have been saved for a longer love interest for Merlin.

they finally gave Merlin a romantic interest.... it DID seem like they fell for each other just a little more quickly than would be normal, but given the situation and the way Merlin is : such a kindhearted soul : i CAN see how he would fall for someone that, KNEW about his magic, was very pretty , and needed his help immensely. and i can also see how she could fall for someone that, frees her, is nice and kind to her and REALLY TRIED his best to help her despite the consequences., especially after all that she's been through. What i think they should have done though, to make this better, would have been to stretch this out over 2 episodes and to have shown more interaction and conversations between the 2 of them. it just sorta felt really rushed, sort of like the writers didn't realize how much potential this story had. ALSO it didn't seem to pass through the heads of whoever was in charge of the show that the piece of plot-line they were stumbling onto was a ROMANTIC INTEREST for the MAIN CHARACTER which should ALWAYS be given special treatment and be done carefully.