Board Thread:Questions and Answers/@comment-4623180-20120919141837/@comment-5653093-20121111192516

I don't think that he should have told her. Morgana is very manipulative and can get quite ruthless. Look at what happened in To Kill the King. And lets assume that the events of Series 2 happens after he told her. Morgana could have manipulated him to kill Uther and Arthur or she will tell Uther about his magic.

Also in series 4 when she finds out about Emrys, she could have put two and two together and kill Merlin or have Agravaine tell Arthur that Merin is magic.

Remember if it weren't for Gaius and Hunith, Merlin could have ended up being like her. Like Kilgarrah says, that in some ways they are quite alike.

(Well at least, I quite enjoy seeing Morgana's cruel plans fail every now and again (apart from the Dark Tower - which hasn't been resolved).)