User blog comment:Morganaforever/Question about Guinevere and Series 5 in general/@comment-5674726-20121112205529

How did Morgana and Aithusa, a very powerful sorceress and a fire-breathing Dragon, manage to be captured? Maybe Morgana's powers had yet to return after Merlin stripped them when she was captured. Aithusa could have tried to help her but she was just a baby and she couldn't prevent Morgana's capture, so she stayed with her because it was all she could do for her. I get the impression that Morgana's captor let her go rather than Morgana breaking free, so her prison and/or chains could have had some kind of anti-magic protection.

Questions remaining from series 4...how did Morgana escape after her defeat by Merlin, why did Aithusa choose Morgana, and many, many more... When Merlin healed Morgana in "The Crystal Cave", he used dragon magic to do it. Maybe Aithusa could sense a lingering trace of dragon magic in Morgana and was drawn to her as she lay dying. Then when Aithusa healed Morgana, she got a second infusion of dragon magic that gave her a deeper connection to Aithusa, with whom she shares enough of a connection to allow some communication, since she knows her name. Maybe the reason why Aithusa seems to have gone from a he to a she is that she imprinted on Morgana, for want of a better term, and once she chose her, she took on aspects of her, including her sex.