Board Thread:Rewatching "Merlin" - Season Five/@comment-28430223-20160511161204

The whole issue of Morgana being captive with Aithusa in Sarrum's dungeons is never explained in detail, just randomly commented on. We never have an explanation of Morgana's relationship with Aithusa, and why did Aithusa helped Morgana in the first place. Also neither Merlin or the dragon ever question about these issues. 