I think this has probably already been done, I just haven't read a single MI fic, so I know that it is original writing… and I doubt the twist I am putting in will have been done (I like being strange and doing original things… hence my Oliver/Claire MV fic… ok, off the point there entirely)

Summary: he knows that Alec will die, sooner or later. So he does the only thing he knows to do. Protect himself… but is there a motive behind why Magnus is doing this? And could this destroy them all?

"No," Alec says to me as I do the thing that destroys my own heart as much as his, probably more so. After all, this is his first relationship for him… it may be into the hundreds for me, but it is the first one that has had any meaning to it whatsoever. It's been the first time that I fell for someone so completely and utterly as I have for Alec.

My name? Ahh yes, how rude of me, I almost forgot to introduce myself. My name is Magnus Bane and I am High Warlock of Brooklyn. Of course, I have had to work to get here, unlike these mundane children who get everything handed to them on a silver platter… personally, I think it's the eyeliner I wear that got me this position, as well as the utter perfection of my wardrobe and the way that I hold the best parties this world has ever seen.

But back to the point. Before I got distracted with my power, where was I? Ahh yes, breaking up with my boyfriend.

I love him so much; it pains me more than anything to do this. After all, would I have done everything that I have done for him and his pathetic friends (who get into more trouble than I have in my entire life before) if I didn't?

No, love isn't the problem. It isn't the problem whatsoever. In fact, it was love that kept me with him for the past six months, even as my conscience grew and grew about whether or not I could do this, if I should do this.

"No what?" I ask him in a quiet voice, staring down at him from my great height.

"You cannot tell me that you love me one day and then tell me it's over the next!" he explodes at me, entirely justified in his emotions… this realisation only makes it hurt even more for me because I know that I shouldn't be doing this. After all, he came out in front of his entire world for me… why am I dumping him now after such a short time?

"Evidently I can because I am," I answer, trying to distance myself from the situation. I need to find a way to make myself become Magnus, the High Warlock who didn't care for Nephilim no matter how hot they are, so that I can do this otherwise I will fold and end up destroying him. well, not right now, but I will destroy every single chance he could have of a future.

His eyes narrow as he tries to read my face, trying to find out why I am doing this. He is right; yesterday, I told him I love him. I told him that as we made pancakes, a novelty I had never done before because, well, I prefer to order in than cook myself. Yet today, I am telling him I no longer wish to be with him… I can imagine that that is confusing; it is confusing to me, to my heart of the twenty something year old body I will forever have.

Whilst he can age…

"I don't believe you," he says suddenly, his face adamant with the Shadowhunter stubbornness that will destroy them all. It is the stubbornness, their utter belief that they are the only ones who have any power in the world, that gets them killed, be it the strongest one of them all or the weakest child. It doesn't matter, they all have it.

I sigh deeply and turn away, elaborating all my moves to try and make him believe I don't want him. I try to make him believe that I don't want him, don't need him, so that he will leave…

"Are you done trying to contest something you know is true?" I ask him impatiently, studying my nails to try and block him out. His appearance, it's mesmerising to me, it draws me in entirely. But I force myself to think of Charmed and the boxset I have yet to watch to try and stop pining for him.

"I cannot contest a lie, no," he says, entirely positive in his belief that I still love him. That's probably because it is true, yes, but I know that I cannot be with him.

He has the chance to meet someone else, someone he can age with. Be them Nephilim (surely he isn't the only gay one) or mundane, he deserves the chance to grow old with someone who can. I can't do that; I can't experience any age other than this one and it isn't fair to make Alec stay with me… he will regret it in the future, I am sure of it.

"I can tell you without a shadow of a doubt that I am telling the truth; we are wrong for one another and shouldn't have done this for as long," I say slowly, shutting my eyes just incase he manages to get around and be able to see into my eyes for long enough to see that I am lying.

"I don't bloody believe this!" he suddenly yells, striding with a fierceness in his stride that reminds me of when he is fighting to the door and walks through it. He slams the door shut behind him and I wince, but know that this was the right thing to do. If not for me, then for him… especially…

"Very impressive, Magnus," the voice of the Greater Demon Fredoria says from behind me, his voice merely the only thing in the room. There isn't a projection of him or anything… just his voice. He can reach anywhere on this Earth and not need to be within three light years of it. "I thought you were going to give up midway through and confess that it was all a lie, but you didn't."

I shudder as his reach circles around me, my protective charm only holding the absolute worst off of his reach. He can still get in and intimidate me, let me know that he is a thousand times stronger than me and could destroy me at any time – me, the High Warlock of Brooklyn!

"I did it," I say through gritted teeth, shutting my eyes and thinking of Alec's face, imagining him only an hour ago before any of this. "But that means you leave him alone now, right? That was the deal," I continue, wanting to ensure that he does this.

"Why yes of course: Fredoria always keeps his word," he says with a cackle that suggests the word is temporary and could be gone at any moment. "Yet I never promised anything about his friends, or his family… good work, Warlock. I shall be in touch next time I need you to do something."

His presence leaves the room and I collapse onto my knees, unable to believe I have done this for a greater demon. I mean… I have worked for a demon. I am as bad as Valentine himself, worse in a way because I can love and I have pushed the only person I care about as far away as possible.

I pushed Alec away because I didn't want him to be with me as he aged, so that things didn't deteriorate when he realised he could have something more… but there was another reason.

Because a Greater Demon is telling me what to do, just so that he doesn't kill Alec.

This life is great… if it wasn't for eyeliner, I would have given in a long time ago.

So, any of you interested in how this Greater Demon thing will affect Jace, Clary and the others?

If you are, review!

Vicky xx