Never Quite Lost

AU. The battle had been short, the victory simple. And with Merlin's magic on their side, well, what was out there that they couldn't do? Destiny was fulfilled, Albion was born, and everyone was happy. Everything had been going their way. 'So why,' Arthur thought, 'did it all have to go so horribly wrong' Features baby!Merlin and caring!everybody. Not what you think.