User blog comment:Morganaforever/Death of Merlin and Morgana/@comment-5845325-20121212232549/@comment-5674726-20121214005030

It would be courageous and very generous for Merlin to have Morgana take the credit for saving the day, and for him to leave it to her to build Albion with Arthur. He's wanted Arthur to recognise his contributions one day, to build Albion with him and to see magic restored so, if he gave that up to bring Morgana back to Team Camelot and to give Arthur his sister back, it would be a heroic sacrifice.

Perhaps, at a later stage, Morgana could tell the truth about Merlin's part in the story to Geoffrey of Monmouth. By then, Geoffrey is either senile, or indulges in a little artistic licence and the Merlin in his chronicles is portrayed as an old man, Arthur's valued protector and advisor, rather than a young servant whose contributions tended to be overlooked in life.