Merlin's POV:
I killed a man. Murdered him. I had taken a man's life. It was for a good reason, to protect Arthur, but it still made me hate myself. I could still feel his crimson blood staining my hands, hot and wet. I wanted to cry after I saw what I had done, wanted to drown myself in something, anything, to forget the horrendous crime I had committed.
"Now you're like me. Dirty, befouled." Arthur's voice whispered.
"Like you? I am nothing like you!" I cried. Arthur stepped back, his face a mask of confusion and sadness.
"You are everything like me, Merlin. We're both misunderstood, both lonely." Arthur replied.
"I'm a murderer." I whispered, pain engulfing me.
"You're a murderer because you saved my life?" Arthur asked.
"Yes. I killed him, thoughtlessly, and taking a life should never be done. Especially his." I murmured.
"It's going to be okay, Merlin." Arthur said. As we stood there next to each other, Arthur's arms wrapped around me, we stared down at his still body. The still body of my brother, who had tried to kill the man I love. I had murdered my only brother, and I'd live knowing that my hand killed him forever.
"I'm so sorry, Adam." I whispered, and then bent down to pick up my brother's body. I carried him to my horse, and gently lay his body on the front of it. Arthur and I galloped back to Camelot, and then came back to the clearing. I dug a deep grave, and then gently placed his body in it. I covered the hole where his broken body lay with dirt, and said my final goodbye. Arthur and I turned and went back to Camelot, not once looking back at the grave of my brother, the only member of my family who was still alive, once.