AN: So, this is just an idea that I decided to write as a way to get it to leave me alone.

I'm not sure how much I'll work on it or if I'll just leave it and focus on my first fic.

Disclaimer: I don't own Harry Potter, or I'd change a lot of it and be much richer.

Warning: The opening is my own experience with religions, so if religious I apologize for any offense from it. It's only my personal view and I'm not trying to make people question their faith, only make you understand the view of my SI in this fic. Tried keeping it to only a paragraph or two to prevent offending everyone.

This Fic is about a SI seeking to avoid his Death... Like I said the SI is Mad from his experience at the start and him merging with an already partially crazy individual, so no holding back because of things like age or logic... Well, he might show his intelligence occasionally.

Chapter 1: Reduced to Nothing

I'm Dying... I've never cared much for what I'll face afterward, but it's human nature to question the unknown, to seek answers where they can't find one. The greatest of these questions and curiosities would be 'What Lies Beyond?' for who can tell what awaits you in the end?

Personally, I was raised 'Christian' but refused to be one after seeing through the act most present to the world. They didn't believe in doing what's right... They just wanted to feel better about themselves over something they'd done or avoid having to face something they knew nothing about... Death. Everyone wonders what happens, the religious preach various afterlives of 'perfection' and damnation', while others say you're reborn depending on your born anew... And others view it as simple logic, you live and when you die that's it, all you'd ever been fades to nothing and your body just 'feeds' the various inhabitants of the earth you're buried in.

A cheerful thought really, you can choose which you'd prefer and hope for the best or just accept you'll never know for sure until your times up.

I'd not been one to care for it, I had no way to know for sure and listened to various groups when I'd first become aware of Death... I like to think that regardless of the outcome that I'd be fine with any of them.

And now? As I laid bedridden from sickness? I get to answer this unknown question.

...Void...

I was in Darkness.

Nothing was in sight and no sounds could be heard... I was alone.

When I tried to move or speak I found myself unable, as if a great force was pulling me down and keeping me in position.

Trapped and unable to do anything, I admit I did the only thing I could... I thought about my past and how this was possible. There were tales of a 'Purgatory' in some parts of the world and I'd no idea if this was how I'd remain until a so-called 'god' decided it could judge me.

'How long will I have to wait?'

...Unknown Amount of Time Later...

So, this Void I was kept in for what could have been weeks, or even years was certainly no Purgatory of a religion... I was simply trapped unable to do anything for however long I can exist here. No Gods, Devils, or Entities have revealed themselves if they even exist here.

However, one thing drew my attention, the same thing that had made me try to move for the first time in centuries... A Single 'Hole' that seemed to be opening slightly and presenting a potential escape from this place.

'I just need a way to reach it.' As if caused by this thought, the Hole grew and I found the larger it became, the better I could move and without any hesitation, I ran straight for the mysterious cause of my returned movement.

My presence never the Hole seemed to trigger something making it begin to glow as I felt something inside me start to feel Pulled towards it, and before I'd turn away or react to it? Pain like no other flooded my entire Body until I was suddenly... No longer there and instead drifting into the Hole as my former Body broke down before my eyes.

'If that's the Price I pay to escape this Hell then so be it.' I'll find some way of regaining a Physical Body and never again return to this place.

...With a Certain Psychopath...

I found myself within... Someone Else, I could feel them as they went about doing some strange 'ritual' of sorts? Had I ended up in another world that's still bound to Medival Superstitions? Or is this an alternate world where it's actually real?

Another Pull came over my Body drawing me to where I saw that a strange ball of glowing energy, darkening and dimming as my new 'Host' continues his ritual, suddenly break in half and as I got close enough I latched onto the half that had begun drifting out of the Body... I didn't want to live a life as some Passenger nor suffer the consequences the Host will likely go down if my thought of Who they are is correct.

The instant we got to the point of breaking from his Skin, I witnessed the Ball I'd been holding Melt into me and the next thing I knew I was watching another life play out through the eyes of those who lived it and felt every Muted Emotion as they did... But through it all I never truly allowed it to Become Me, not even when I first learned the Boy's Name and who he later became.

'Tom Marvolo Riddle' Even as the name echoes through my mind, another thought of another invades my head.

'I AM LORD VOLDEMORT!'

...Weeks Later...

I'd lost track of how much time has passed, all I know is it's almost as bad as the Void I'd escaped. The sole difference being within the Diary, I could form a small 'replica' of a few locations within Riddle's Mind and walk through them as if it's the 'Real World'. My favorite being the Hogwarts Library where I can pass the time 'reading' books that are actually a way I can view my memories and store them for whenever they're needed.

'Still, it'll do until I get a handle on what I'm truly able to do in here.'

Tom Riddle, the One I should have merged with, and whose name I'd take for myself as my own was among the many things I gave up to keep hold of the rest of me within the Void as It seemed to be deliberately erasing my memories of Who I Was and not what I knew.

Tom Riddle was the name and identity cast aside for another by its original holder, and I'd be the one to claim it as what remained of them... Whatever remained after that ritual was only Half of them and would later become even less.

'Willingly Abandoning who you were for a poorly researched title.' What a childish thing to do, and how far it's consequences would go as the Boy would turn into a monster... Well, he'd not be the only one.

I won't go as far as him, but I remember his reasoning and hold all his current Knowledge. I even gained Magic due to his Horcrux that now makes up a third of who I am... Granted I'm certain some of his traits and issues are likely to have also been taken as part of our 'merge'.

'Magic almost makes what he did acceptable... If he did more than just leave me trapped in his Diary, carry me around, and constantly write in me when he learns something or has a sudden idea.' Okay I lied, Magic is great and holds immense potential, but not when I'm so bloody dependant on others to move and I'm going to remember this time when I inevitably get out...

As soon as possible I'm fiend-firing his balls off for it... and his hands, limbs, eyes, and tongue.

I'd take away his nose too, but he already loses that before I'd be able to Physically Harm him.

Note to self... Boredom and isolation in a Book isn't a good idea. I'm pretty sure I'm going to go completely mad before Lucius gives me to Ginerva Weasley.

'How to deal with this?' I have a few things I could use to keep myself occupied or just skip until I've got the chance to be free, I could find out how the Original Diary apparently stayed 'asleep' until written in... Unless that was Riddle's doing later on? Or I'd try out what I'm capable of? Surely there are things Unique to being a Soul inhabiting an Object?

Maybe, I could find a way to leave entirely at some point and exist as a Wraith like Voldemort?

'He better hope I find that 'snooze' feature soon or I'll make sure he gets a one-way trip out the next window when I work out how to use Magic from in this Book.' It's a true same I can't subvert control of him as the 'Main' Tom Riddle, at least currently... I may be weak and helpless for now, but

I've all he's ever learned and known as if it were my own.

'Time to practice what little I can personally do.'

...Unknown Time Later...

Finally! I've managed to learn to slowly siphon the Magic around the Diary, much faster when I'm in an area it's actively used than if I'm simply placed in a Room without any spells or wards... So, when I'm carried into lessons for Riddle to make 'notes' in as he's finishing his final lessons before the year ends and I'm likely to not wake until 'Canon' when he's already fucked up? I make sure to get as much Magic as I can.

Now to pass the time while my 'storage' gets filled...

'I know a spell that will skin you alive, skin you alive, skin you alive... I know a spell that will skin you alive, and this is how it goes...' This song is simply one of many I've had come to mind since the 'merging' between myself and Tom Riddle... And is truly catchy in my opinion.

Maybe if I get out I can sell them to the 'dark' families to sing to their children?

...Who knows How Long Later...

I was peacefully sleeping away the recent years when I felt someone open me and begin writing...

This Diary is Property of Ginny Weasley.

Rude, I was dreaming of... Oh right, I should probably do that before my 'mysterious' writer stops. A little application of some of my Magic and Ginerva Weasley is unknowingly placed under a Compulsion of mine.

Now, what's she writing?

Dear Diary,

Today I went to Diagon Alley and got my books for when I start Hogwarts. I'm worried if I'll be able to fit in or make any friends there.

Ok, I'm really going to have to do this... Fine.

I 'soak in' the writing and begin putting together a 'polite' response.

Hello Ginny, it's wonderful to meet you.

Allow me to introduce myself, my name is Tom Riddle and I created this Book to have a permanent companion during my own years at Hogwarts.

Don't worry about Hogwarts, it's a brilliant place full of exciting things to discover and many students to befriend during your time there.

Now to hope she isn't too scared by a 'charmed' Book... She'll likely try looking up 'my' name and when it doesn't show any 'dark' connections at least write back.

Not like she's never heard of talking mirrors, portraits, and even the Marauder's Map is known to write back if she's managed to try accessing it when the Twins leave it in their room during the Holidays. Not to mention she likely assumes it was an extra gift from her parents, as she was apparently the 'favorite' as their only Daughter.

'I did also place that 'small' compulsion to trust me and keep writing.' The way they're applied is decided by the caster, I personally chose to start small and slowly turn it into a 'habit' of hers to write how her day goes until it's practically a required part of her day.

Much more subtle and difficult to spot than those that start off strong and usually get seen straight away from the sudden change in behavior.

'Just need to wait for her curiosity to grow...'

AN: So... This is an idea I've had for about a week now, and will likely be a 'Mad' SI as while it's a SI of me, they then spent years in the Void and also merge with the Original Horcrux of Tom Riddle... I'm still considering the total effect of this combination and am looking forward to how I can take this.

That said this SI isn't going to be nice, even compared to my other fic, he'll likely be more manipulative to get out and establish a 'life' of his own before he begins trying to make any moves against those he views as 'wronging' him, including who Riddle believes wronged him at the time the Horcrux was created.

My SI has 'merged' with half of Riddle's Soul, so he's gained some of his aspects and that includes his fear of death increasing his original fear of returning to the Void he has been trapped in.

He's not going to try returning to his original world as he's lost his name and connections there. Only remembering other pieces of information, which has suffered as while he could keep making up stories to pass the time when he couldn't do anything else he's still lost a lot of knowledge about some things. Though not entirely as the Void mainly focused on his Identity and it was most of the time he was there that cost him other memories.

He then lost his body as the price of 'escaping' even if he did try they're likely dead too and so he's combined his Fear of the Void, to Riddle's Fear of Death and Driven to do anything to live as long as he can. He's more likely to condemn himself to 'Limbo' than allow himself to die a natural death and return there.

I actually couldn't decide at first on if he'd stay and merge with the Main Tom Riddle, or the Horcrux as I had ideas for both. The Horcrux won as the first would have been too easy considering how Sane Riddle had the charisma to charm most people except Dumbledore.

The Horcrux is stuck with the history of Riddle and unable to act for the most part. I'm genuinely unsure of how it'll go.

Extra Information about Fanfic

Warning about SI

This SI is going to be rather crazy at times due to their experiences and while they'll be capable of hiding it at times, be prepared for a lot of Death as they'll have no issue's against using an Imperio to start a massacre just because they can or need a slight distraction... No complaining about Evil/Insane SI when you've been warned.

He'll also be fine using any Magic for his goals, even rewriting someone's mind or using Crucio's to break innocent people of any age into willingly agreeing to his orders.

Horcruxes

This fic will have the Book as a Permanent Horcurx to act as a way for the SI to always have a way to survive even when he's Free with both a Body and a Wand.

I also plan on One additional Horcrux as he's gotten some of Riddle's obsession with magic and that includes the magic 'numbers' as it were... 1, 3, and 7 being the smallest. So, three pieces of his Soul. The Diary he's trapped in, His Main Soul which he'll be using to possess victims and later create a Body for... And a third one that he'll try hiding where no one would either look or find it.

Each will be a third of his Soul in each as while the Horcrux ritual requires the soul to 'split' I never really found any true purpose as to why it'd need to be Half. Even Slughorn and Dumbledore only ever say Horcruxes are for a 'piece of your soul' never a specific amount.

Three was also chosen, as I believe that's when Riddle was Truly lost. I think he only had around 3 or 4 when he tried applying for the DADA's Position and even then he seemed sane enough to use his intelligence over lashing out in anger as he'd later do. So, he'll become slightly affected physically by his Horcruxes, but not to the same point as Voldemort.

Identity

He'll also take on the Identity of 'Tom Riddle' to replace his own and possibly react differently than my first SI does.

Perks from being 3 times the Original Diary's Size

I do have a thought about him being able to 'slightly' depart the Diary due to his much larger and more powerful Soul from the Merge, though only within a certain range of the Diary before he's drawn back into it, along with unable to be seen by any except who holds it at the time if anyone.

It'll take tricking someone to 'open' themselves to him to truly have their Soul completely restore him... Like the Original persuaded and later used Ginny in Canon. So no easy return, he'll have to manipulate and scheme his way into getting a Body and not just go straight to Possession.

However, he's going to be rather powerful once he's freed and got a wand of his own. As he'll have a little 'Boost' from the merging, but not to the point of wiping the floor with the more powerful characters.

Fate of Ginny

Ginny, I'm considering how best to use it, as I could see him keeping her as a 'Bellatrix' or just eliminating her.

Potential Takeovers

While I won't take over Harry Potter or Ron Weasley... There are a few others I could take over, even if it's only temporarily. :D

Feel free to let me know your thoughts on this fic and where you'd like to see how it goes.

Just remember to keep it 'constructive' as I'll only give a short response to insults before deleting them if their a guest or if they have an account then I'll just pm a response and while I don't mind reasonable discussions or questions, the instant they try arguing because of 'Canon'? I'll simply block them and continue my fic as fanfiction isn't Canon and while this may offend people... I will occasionally use my own view of something instead of just relying on vague Canon descriptions or 'facts'.

Plenty of fics to read and if you don't like mine then go find one you do like.

Anyway, even if no one comments I'll likely at least do a few chapters when I need a break from writing my other one. But knowing if anyone is actually interested in it will make it more of a priority than 'whenever I decide' and I'll see about making at least a chapter every week or so...