Disclaimer: The Mortal Instruments is not mine, if it were, I wouldn't need to write fanfiction about it :)

Sing it out
Boy, you've got to see what tomorrow brings
Sing it out
Girl, you've got to be what tomorrow needs

For every time that
They want to count you out
Use your voice every single time
You open up your mouth

Sing it for the boys, sing it for the girls
Every time that you lose it, sing it for the world
Sing it from the heart, sing it 'til you're nuts
Sing it out for the ones that'll hate your guts

Sing it for the deaf, sing it for the blind
Sing about everyone that you left behind
Sing it for the world, sing it for the world

Sing it out
Boy, they're gonna sell what tomorrow means
Sing it out
Girl, before they kill what tomorrow brings

You've got to make a choice
If the music drowns you out
And raise your voice every single time
They try and shut your mouth

Sing it for the boys, sing it for the girls
Every time that you lose it, sing it for the world
Sing it from the heart, sing it 'til you're nuts
Sing it out for the ones that'll hate your guts

Sing it for the deaf, sing it for the blind
Sing about everyone that you left behind
Sing it for the world, sing it for the world

Cleaned up, corporation progress
Dying in the process
Children that can talk about it

Living on the railways
People moving sideways
Sell it 'til your last days
Buy yourself the motivation

Generation nothing
Nothing but a dead scene
Product of a white dream
I am not the singer that you wanted but a dancer

I refuse to answer
Talk about the past sir
Rooting for the ones
Who want to get away

Keep running!

Sing it for the boys, sing it for the girls
Every time that you lose it, sing it for the world
Sing it from the heart, sing it 'til you're nuts
Sing it out for the ones that'll hate your guts

Sing it for the deaf, sing it for the blind
Sing about everyone that you left behind
Sing it for the world, sing it for the world

We've got to see what tomorrow brings
Sing it for the world, sing it for the world
Yeah, you got to be what tomorrow needs
Sing it for the world, sing it for the world

"Hello Magnus, son, it's been a long time. Not that you remember, eh?" Asmodeus laughs sardonically and I feel a welling surge of hatred fill my heart. Magnus grips my hand, feeling my rage and calms me softly.

Jace and Tessa glare at the demon, weapons ready and prepared for anything. As Magnus steps forwards, he lets go of my hand and his eyes shoot to the Divine Blade in its holster. I understand and slowly withdraw it, hidden from sight by Magnus' body as he moves closer to his father.

"Enough with the pleasantries father, I think you know why we're here."

Asmodeus grins gruesomely. "That I do not, son. Please, enlighten me."

Magnus growls under his breath and I feel my binding rune prickle and burn with his own hatred of the Prince.

"Give me my memories back."

Asmodeus blinks, the fire in his eyes flickering for a second before he laughs gratingly.

"And why would I do that when it's given me such delicious pain to feed on?"

I growl under my breath, speaking internally to Magnus. Should I do it now?

Magnus smirks at his father, the similarities in their faces are shockingly familiar for that one brief second.

Now Alexander.

I grin and Jace and Tessa both smile evilly, nodding at me as I step forwards, angelic power blazing and hold the Divine Blade majestically. The sheer heavenly power giving the blade an ethereal glow in the darkness of Hell. In that moment, I feel a power surge through me, my strength flaring, my eyes gleaming and runes burning bold as I hold the power of an angel in my hands. I hear Magnus gasp beside me and I know that he can feel the power too.

I smirk at Asmodeus. "You should do it because if you don't, I swear on the angel that this blade will be used against you."

Asmodeus flinches, stepping backwards, the fire in his eyes flickering as he hisses. For probably the first time in forever, a demons face is showing fear. He gasps and stares in awe at the blade.

"Where did you get that?" He asks in wondrous horror.

I cock an eyebrow. "At the bottom of Lake Lyn. It seems that Raziel kept one of these bad boys on earth just in case any other Helm Princes needed an ass kicking."

You see, there were 9 Divine Blades created when the angels first fell from heaven. One for each of them, to capture their essence and hold their hearts, to stop them in their tracks from any evil they desired to enact. The first blade was used by the Archangel Michael, who destroyed Lucifer with his famous sword. Once Lucifer was gone, the other Princes crept into the shadows and the remaining 8 blades were given to a select few of Gods angels, and hidden away for safekeeping, mostly in Heaven. Although, the angel Raziel had other plans. After he had created his Shadowhunters and the Mortal Instruments were designed, he hid his Divine Blade on earth, in the Angels City, Alicante. Where no demon could reach it, but any Shadowhunter in need of the destruction of a Prince of Hell could find it. Thus, our stories now align.

Asmodeus gasps and growls. "Raziel. I should have killed him when I had the chance."

Magnus smirks. "You really should have, because now we have a weapon that will absorb your essence and crystalize your heart. So I'll tell you again, do what we say, father."

We stand shoulder to shoulder, blade in my hand, blue flames in Magnus'. Asmodeus stares hard, fury burning behind his eyes before he subsides.

"What is it you desire?"

We grin in triumph. I step forwards, casually swing the blade over my shoulder.

"Listen close because this may get complicated. Can you handle that? Or would you like me to get you a pen and paper?"

Jace snorts a laugh and I flow with confidence now.

"Ok: First, give Magnus his memory back. Then, give me my immortality forever because if there's one thing I've learned, it's that I can never leave your sons side ever again. Then, this is where it may overextend your mind a little, you're going to turn back the clock. Give us back those 70 years. Make it right. Push back time right until the moment just before you turned up and wrecked our lives. Got it?"

Asmodeus glares at me, a snarl on his lips but he pulls back with a casual flick of my wrist and slice of the blade through the air.

"Anything else?" He asks begrudgingly.

I smile. "Actually yes. You'll bring Simon back to life. My sister lived her life without love because she lost him. So you're going to bring him back, as a token of your... remorse and a symbol of your desperation for forgiveness."

Magnus laughs beside me and Jace is weeping with pride. Tessa smiles and nods approvingly while Asmodeus licks his lips nervously.

"If I do this, you go in peace? The blade doesn't get used."

We all nod sincerely. He lets out a deep breath and claps his hand together.

"You drive a hard bargain, Lightwood. But I shall agree to your terms."

He shrugs and steps forwards, placing his finger on my forehead. I feel a surge of something rush through me as my eyes fly wide.

"What was that?" Magnus demands.

Asmodeus smiles. "His immortality, of course."

I turn to Magnus and smile, he takes my hand with tears in eyes.

You did that for me?

I smile lovingly. I did it for us.

I turn back to Asmodeus. "Now Magnus. Give him his memories." I say with a flourish of the blade. He glared at me before extending a hand to Magnus' forehead.

He gasps as he touches Magnus and a second passes before he pulls away and Magnus drops to the ground, heaving and crying and gasping and moaning. I drop beside him and hug him close as he shakes and sobs, his lain abundantly clear. I look up at Asmodeus.

"You better not have hurt him."

Asmodeus licks his lips. "I didn't."

I shoot him a pissed glare and turn back to Magnus, who is staring at me in rapture. I furrow my eyebrows and my lips part as I try to speak, but he gets there first.

"Alexander?" He whispers softly.

I stare into his eyes and see something I haven't seen since I've been back with him. That pure, undeniable, love.

I gasp as he reaches out and places his hand on my cheek. He smiles and tears openly flow.

"Alec. My Alec. How could you do this for me? Put yourself through hell all over again for one trivial warlock?!" He cries.

But I smile, clutching his free hand with my own. "You are not trivial Magnus."

He gasps and cries, pulling me closer. "Neither are you, blue eyes. I told you that much at Luke and Jocelyn's engagement party."

I sobs loudly. "You remember me?"

He smiles heartbreakingly. "I shall never forgive myself that ever forgot."

We smile and stare into each other eyes. He wipes a tear from my cheeks and I blush softly.

"Aku cinta kamu, Alexander Lightwood." He whispers.

I place his hand over my beating heart. "I love you too, Magnus Bane."

He smiles widely, in for a hug. I drop the blade as I throw my arms around him and hold on so tight that neither of us can breathe.

He softly whispered in my ear as I cry. "I've missed you so much baby. I saw you in my dreams sometimes. But I never knew it was you. I'm so sorry, Alec. I will spend eternity making it up to you. I love you. Angel, I love you. I'll never leave you again, I swear. On everything. On us, I swear it. I love you, Alexander. And, before you start worrying that pretty little head of yours, yes, I remember everything. The party where we met, our first date, the wars, the fight in the Subway station, everything. Even Venice." He adds in a different kind of whisper, the kind that instead of sending shivers across my body, it sends my blood rushing south.

I pull back and smile at him, blushing like crazy. "I love you, Mags."

He grins. "I love you too, blue eyes. Now kiss me already, it's been way too long."

I pull back in confusion. "We kissed earlier, Magnus."

He sighs exasperatedly. "Yes. But I didn't know you then, did I? And now, not only do I know you, I love you."

I smile and grab him by the shirt tightly. "Well then we better kiss hadn't we?"

He ponders this for a minute, a teasing light in his eyes. "I think we owe it to ourselves."

I nod and we simultaneously move closer, our lips touching in a blaze of love and fire and happiness and sparks. Suddenly, everything is right again. I have my love back. And Magnus finally has that missing piece safely back in his heart. Kissing him again is life waking from a deep sleep, dead even. It brings us both back to life.

We break apart when we hear a sniffle from beside us and we turn to see Jace and Tessa smiling through tears. We stand and embrace them quickly, our hands locked in a grip that we never intend to let go of. We all stand together, turning back to Asmodeus, who is staring at us as though he is physically repulsed by the show of true love.

I talk straight to him, fuelled by not hatred, but love, this time.

"Ok. Last part of the deal. Turn back the clock and send us home, Asmodeus."

He smiles with a cruel glint in his eyes. "Oh I will, just one last thing before you go though. You see, there's an old friend of yours here to see you, Alexander. He missed you."

We share looks of confusion and form a loose semicircle around Asmodeus, who is openly grinning now. I speak with a slight edge to my voice while Magnus grips my hand tight.

"What do you mean Asmodeus? I have no friends in Hell."

He looks at me lightly smiling. "Don't you? Well that's odd, because I'm sure you remember him."

I shrug confusedly. He grins gruesomely and says in a raspy, rough voice.

"He just wants to say hello again. Don't you, Abaddon?!" He cries gleefully.

My eyes fly wide and both Magnus and Jace gasp. Asmodeus is grinning at something behind us and we turn frantically.

Then suddenly, there, right in front of me, grinning grotesquely with twist black lips, scaly dark skin and a physique truly too horrible to begin to look at, is Abaddon.

I am about to yell and draw my blade but I am too slow, because with the same poisonous appendage he used years ago during my near miss, Abaddon plunges his stinger deep into my chest and I fall to the ground with a blood curdling scream as I am overtaken by pain and darkness.

There is a moment of screaming chaos, then suddenly, there is nothing.