This is a summary of the story so far for those of you who are anxious about the way it's going or confused by the plot.
Arthur begins to guess about Merlin's magic, but he is not prepared to confront him, he is not sure if it will change things too much, he does not know how he will truly feel about it and he also wants Merlin to tell him himself.
Merlin and Gaius find a quest for Arthur to go on to stop his boredom with the peace that Camelot has found. Arthur feels as though he has no purpose unless he is fighting something or pitted against something. They go off in search of a legendary stone that men have long fought over. There is a prophecy about the stone that it will start a war in Camelot when Arthur is King. They find this out from a journal written by a woman who Merlin discovers is an ancestor of his.
They travel to find the castle where the stone is hidden so they can destroy it. They have adventures on the way. They come to a great forest. A magical place, the book has warned them that they will be tested. They get the chance to tell each other all that troubles tem but they do not. They both have dreams. Arthur dreams that Merlin dies and that he himself has magic. Merlin dreams that he dies and that Arthur becomes King and behaves just like Uther.
They separate. Merlin is tested by meeting Morgan who he has wronged, he resolves this by talking to her an telling her that he should have helped her when she asked for help to understand her magic.
Arthur is tested when he meets Gwen who tells him that Morgana killed Uther, this puts Arthur in a murderous rage.
Arthur confronts Morgana and starts to lose his temper. Merlin tries to stop him and discovers that his magic does not work so he tries to stop Arthur and grabs his arm. Arthur loses control and accidentally kills Merlin.
Meanwhile back in Camelot the Lords believe Uther is dying so they send 2 knights to bring Arthur back. Gaius gives them a map and a letter for Merlin. The knights arrive at the outskirts of the forest but they find a ruined castle instead and the prophecy of the war over the stone. The forest only exists for people who are in search of the stone because it stops them finding it. So the knights who come to look for Arthur only find the ruined castle.
As he mourns Merlin, Arthur experiences what it is to be a sorcerer he realises that sorcerers do not choose to have magic and that there is nothing to fear from them.
He also discovers that he can never leave the forest so he is trapped. He has failed his test by allowing his instincts and anger to take over but he is still learning something. He knows now what he is capable of and what will happen if he does not change.
Does that mean he will be able to leave the forest? Arthur starts to wonder if he really killed Merlin or if it was all part of the test.
Everything in the Forest of Heaf is an illusion.
Merlin has passed his test and he is released into the real world. He wakes and it is dark. He tries to perform magic but he cannot. Is this real or is he too fearful of failure to allow his magic to return? He hears voices and sees a light. Where is he?