Merlin will never tell Arthur his feelings, and Arthur knows something is bothering Merlin and decides to find out what. However, a past friend of Arthur's shows up and plans to ruin everything for Merlin and Arthur. Can Arthur help Merlin? Will Merlin be able to save Arthur? It doesn't sound good, but it is, so please trust me and read! (arthurxmerlin) gwaine, percival, leon, kay