The return
Do not read this if you haven't watched all the 3 seasons of Merlin.
After Merlin spilt the blood from the cup and broke Morgause's spell, destroying the immortal army, the two witch sisters had no choice, but to find refuge in a well hidden cave in the woods. Morgause was badly wounded and Morgana had to keep her alive through a spell.
"Sister, this is useless. I can't take it anymore. Both of us know that after all I will die, anyway. You don't have to waste your powers on me. Keep them for your revenge."
"But, I can't let you die like this. There's still hope. My powers have grown stronger. I can heal you and we will take our revenge together. Uther, Arthur and that idiot servant, Merlin, have no escape this time."
"No, sister, you have to do it alone. Listen, I have a plan. If you agree you should let me use my last powers to make an enchantment. This time we won't fail."
Morgana was listening to her sister with tears in her eyes. She knew that the time to make this sacrifice would come. Then she smirked and her eyes began shining with excitement thinking about her revenge.
After Morgana's disappearance, life in Camelot has become more peaceful and calm. No clouds were darkening the sky of this beautiful kingdom. The only problem was the king, Uther, who lost his mind after Morgana's betrayal. Although Gaius tried hard to find a treatment, nothing could seem to make the king overcome his depression. He was acting just like a dead man and this was saddening Arthur too. He couldn't stand seeing his father in this state.
But let's leave Arthur and Uther and come back to Merlin. He was having a tough night because of a nightmare. In his dream he saw Morgana and Morgause and heard the voice of the dragon:
"Don't forget, Merlin. She is the darkness to your light, the hatred to your love. The witch must die."
After that Merlin woke up suddenly with drops of sweat flowing on his face. He realized that it was only just a dream, but, anyway he was still worried. He went to talk to Gaius about this.
"And what was Morgana doing in your dream?" asked Gaius curiously.
"I don't know. I just saw her face for a few seconds and then I heard the Dragon's voice. Morgause was with her too. Gaius, I'm worried. Do you think they are still alive?"
"No, Merlin, I don't think they're still alive. I'm very sure about that. Remember that they have magic and it shouldn't be very hard for them to hide."
"But Arthur sent the knights to look for them and they find no tracks…However, I know how dangerous Morgana is and how much harm she can do to Camelot if she returns."
"Then let's hope she will not come back too soon. Merlin, now you should go to sleep. Remember that tomorrow is Saturday and Arthur will go hunting, right?
"Oh, yes,Gaius, you're right. The Prince is going to kill me if I don't wake up early and do all the chores", said Merlin while laughing.