You had been friends with Sirius Black from the time you two were five. The two of you were both born to sacred 28 families with deatheater legacies and as such, you were introduced at an early age. Naturally, when Sirius became friends with James, Remus, and Peter, forming the Marauders, he brought you along. They welcomed you happily, despite the fact that you were a Slytherin, and loved you like a brother.

It is 1978 and the war rages on. The Marauders jumped into their 7th year happily. You didn't follow. Your parents had forced you to get the Dark Mark the moment you turned 17. You were a brand new Deatheater.

Your arm had been in searing pain from the moment you got branded with the mark. It didn't stop. It came in waves but it never stopped. It had been two weeks and the pain had let up just enough for you to be willing and well enough to hang out with the Marauders again. But, as your luck would have it, your sleeve slipped up just enough for them to see the edges of the fresh dark mark underneath without you noticing. They saw. They didn't say a thing at the time... but they saw.

Later that night you were back in your dorm. Your fellow Slytherin roommates were out doing god knows what and so you were reading and enjoying the time alone and the peace and quiet. You were say on your bed when you heard the knock. Your eyes snapped up at the sound and you figured it was your friends coming to hang out.

You quickly spoke up. "Come in."

The door opened to reveal the Marauders behind it. All with serious looks on their faces, anger flickering in their eyes. That was when Sirius stepped forward, looking back at Remus, James, and Peter before glancing back to you and saying the words that made your heart stop.

"Show us your arm."