I admit, standing in front of the Omega Vault's armored door was quite intimidating. I have stood in front of far greater doors in my life, but none held the unknown as tightly as this one.

On the adamantium glacis there was a nice bas-relief depicting the Emperor strangling a Serpent. Very religious motif, if slightly inaccurate. Obviously, the sculptor had not seen the monster with his own eyes, like I did.

"Void Dragon!" I spoke softly, as I flipped open my Null Box and revealed the Ordo Sinister Rosette. My Clavis engrams should hold the highest authority in the Imperium, bar the Emperor himself. I was quite confident to open the Vault. And soon, it did.

'Sinistramanus Perceptor, Chamber Occidentalis. Welcome to the End!' a A Machine Spirit voice spoke via my implant as the Vault began to open.

'Glad to see you recognize my credentials, Omega. You may access the Pef/M41 files.' I answered as I stepped inside, and walked through the lonely halls.

'The conditions are not met to open Vaults 1 through 5. Vault 6 would pertain to your credentials directly. Vaults 7 through 9 may also be of use.' the Omega Spirit added as it opened a distant door and made the etheric detector light up in warning ' Etheric signals, Type 5, major, stasis.'

While the tesseract showed me the 6 bio-pods, their content was absolutely fabulous. Alpha Psykers, maybe even Alpha +, and 6 of them too. A full set of replacement batteries for my Psi-Titan. And already loaded up in shoulder socket pods, just like Sabaktes had.

'Only six? I have two Psi-Titans with me.' I muttered a bit disappointed.

'Prediction T-engine has not computed a secondary deployment or its survival if it did. Do you have anything to replace the contents?' Omega asked, sounding sad. Such an amazing prediction too. But the Speranza did repair Polaris-Albedelach — The King of Terrors, and even fitted a new arm to Sabaktes, should I ever need to fist something big.

I thought for a moment and then smiled inward. I could spare 6000 Phase Blades for a future crisis. Click.

The Alpha psykers with their pods vanished in my good tesseract and were replaced with 6000 C'tan blades.

'There! 6000 Phase Blades, in perfect condition. But, not for Dark Angels.' I demanded as I walked towards the next door. Sorry, but I didn't trust those guys.

The next door opened and showed me a hololith table, that lit up as I entered the room.

'There aren't many humans that will even know what the serpent is. But you do, Pef Lancefire. The Noctis Labyrinth on Mars holds a terrible secret and this is the key to defeat it, if it ever awakens.' the Omega Spirit explained in a patient voice.

'The Emperor is back and well, Omega. Still, a weapon that can kill an intact C'tan has a huge value. Those C'tan Phase Blades would just melt at his touch.' I said a bit awed.

'Are you going to take it?' the spirit asked in a doubtful voice.

'Yes, but not for the Void Dragon. I already dealt with that. However, there is also the Outsider C'tan, out in that Dyson Sphere. I've been told by Cegorach that it shows signs of activity recently.' I spoke with a wary voice.

Being slightly smarter now also meant I understood the meaning of the Laughing God. He wanted me to kill another God, a cannibal Star God this time.

After all, I did the impossible once before.

I just logged the stellar coordinates and then deleted the map. Right on the other side of the galaxy, in the Halo Stars. That was going to be fun, whatever this Caoineag weapon was. It sure sounded Eldar, something about Gods. It kinda fit though.

Now, what to leave behind? I did have a hololith table here, so an idea sparked a moment later. Vault 7, so 7 STCs of major importance in a crisis. It took a minute to upload and encrypt the priceless STCs, then add a few hexagrammic data-wards on the memory banks, just in case some Chaos infiltrator got in here.

'Those STCs...ancient yet complete. I was not wrong to give you the map.' Omega spoke with a rather impressed voice.

'Let me know if you want an upgrade with hexagrammic wards. I'm a decent techsorcist these days, if not quite the best.' I proposed as made my way towards the next vault.

'... it would mean opening the Last Vault.' Omega hesitated.

'You've already read my files' I said cheerfully and waved my hand in the air.

'The predictor engine cannot fathom you, Sinistramanus. But I also saw what you did outside my walls. You can already take anything you want, and nobody can stop you.' Omega mused gently, perhaps for itself.

I just sighed. Even such a powerful Machine Spirit was expecting me to be a monster. The next Vault opened to reveal 8 alien artifacts, a few quite familiar, and the rest not.

'Hmmm. These items are absolutely useless here. Not even this tiny Nexus Arrangement can be used by the humanity.' I commented in a dour tone.

I peeked inside, to find it holding an army of Flayed Ones, ready to slice open anyone silly enough to try and open the pocket dimension. Or infect an entire Necron Crownworld with the Flayer virus.

The narrative has been illicitly obtained; should you discover it on Amazon, report the violation.

'Of course. You have even stronger ones. Storage units, like my predictor says?' Omega asked curious.

'Some kind of dimensional virus that only affects Necrons in this one. Infects them with the Flayer virus and makes them try to eat flesh, non-stop. Zombie robots.' I hummed dourly, and placed the world-ending weapon in my pouch.

'Data logged and confirmed with Kill-team observations. You would make an excellent Deathwatch Commander.' Omega observed with some respect.

'I will leave a thousand of my Lamenters on this Fortress before I go. Blank Marines are well-protected against most Warp phenomena.' I added as I slowly went though the rest of the items.

As Lash had predicted, a C'tan shard lay imprisoned into another tesseract pyramid. That will be a touchy reunion.

A Phase_Shifter stood useless next, awaiting someone that may use it once more to become phased and invulnerable, for a short time. I once gave one just like this to Trazyn in a trade. I could bet I was able to use it myself, one day.

The cloak was likely the same, a Cloak_of_the_C'tan , used to empower oneself with the C'tan's powers. Surely worth a try.

The Sphere-shaped artifact was likely an Orb_of_Eternity , able to repair any machine with its mere presence. If I ever wanted to become Omnissiah, I just had to use it on Mars, and awe the primitive priests as their broken machines mended at my touch.

The Sand Clock shaped one was uncertain, but likely linked with time effects. Maybe a fabled Chronometron ?

The rest were unknown for now, but Lash will surely know, and may even tell me.

It was clear now someone, or perhaps an entire Space Legion form the old days, had looted a major Necron Tomb, and got away with a wealth of artifacts, that they had no use for.

'Decent stuff here. Meant to be used by Necrons.' I said with a low tone.

'You'll like the next Vault then.' Omega said as I searched for 8 artifacts to replace the loot. I decided on a spread of 8 portable Gnostari and Demiurg Crest shields and 8 Plasma Axes and Hammers as well. Space Marines did enjoy smashing things just like the dwarves.

And sometimes, people needed something immediate to use.

'And so, you do have ancient artifacts too. Enough to prepare a Kill-team. Those crests must be shield emitters?' Omega asked curious.

'Precursors to our Iron Halos I think. Much stronger as well.' I spoke as I walked into the next vault.

A vambrace with nine orange dots lit dimly stood on a marble dais. It resembled the Clavis vambrace of the Watch Commander, but with nine extra things.

'I predict you will be able to track and recover The_Blade_of_Infinity with this prediction engine. Six spatial co-ordinates and three temporal.' Omega spoke in a hopeful voice.

'The ancient ship?' I muttered in confusion. I did vaguely recall something about this lore bit, but it was sparse. An old Federation ship. The name held much promise though.

'Ah! I was correct. You even know what the name means. I picked the right person for the job.' Omega exclaimed proudly.

I nodded as I searched my inventory for something appropriate. Nine vials of Primarch blood? But I didn't have samples from nine Primarchs, sadly.

Nine more STCs? Eh, already done that.

Nine weapons? I stared at the marble dais and measured it for height. Just about right. A floating Astareus Tank appeared just a centimeter above the marble dais. Perfect.

Now, how did it work...my implant sent the right instructions and the tank powered both its shields, Weave shield protecting it from touch or damage, while the inverted Void Shield kept it invisible to the eyes and any auspex.

I clapped my hands for a prank well done. There were nine levels in Hell after all.

As I walked out, puffing in my head, the Omega machine joined me in laughter. 'An inverted Void Shield? Quite the test for any smug Forge Master.'

'Well, this was fun, Omega. I guess this is where we part. Too bad you think so little of me, I've found 4 Primarchs and returned them to service. Even helped the Emperor walk again. ' I uttered with sincere sadness.

'Maybe Vault 1 will be of use after all. Just take him to the Emperor.' Omega said in a low, secretive voice.

As the Last Vault opened I peeked inside to find a large stasis pod, holding a gigantic human impaled with a glass icicle. His skin was fully black and his red eyes wide open.