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Chaos was excited about what this surprise could be.

Already eating four Demons and acquiring their special powers as Skills was good enough, but there was already another surprise?!

Wasn't this way too good?

But Belphegor said that it was indeed a great surprise, so Chaos decided to trust the blazing skull.

Belphegor guided Chaos into a large room right in the middle of the library.

It led to it through a staircase in the middle of it, and after walking through the ruinous and dusty stairs, Chaos noticed that the room they reached seemed to be one where there were a lot of… strange objects.

The room was completely dark but Belphegor's fire, which was unable to burn anything as long as he willed it because it was generated by the power of his soul and phantom as an Undead, dimly illuminated the room.

The assistant Will-o-Wisps quickly rushed here as well, flying over the ceiling and the objects, illuminating things a bit.

Similar to Belphegor, their fire was Phantom Fire, and it didn't burn anything as long as they desired.

There were perhaps over twenty strange artifacts spread through this dusty and spiderweb-filled room.

Some strange ones looked like large cubes with many jewels incrusted on them… Others looked like strange flasks similar to the one he was born in, and other artifacts were small and resembled accessories such as rings and bracelets.

"Is this the surprise? There's a lot of items… Are they useful?" wondered Chaos.

"Indeed! Most of these items are treasures left by Master Ainz for you. There are all kinds of items, some are even more precious than the others… Here is where you will be able to find a variety of useful tools that will certain things swifter, such as this Ring, please wear it," said Belphegor, giving a golden ring to Chaos with a cube-shaped, blue-colored crystal on top.

The moment Chaos put the ring in one of his fingers, he suddenly felt like he was connected to the ring…

Ding!

[Equipped [Spatial Storage Ring (X-Rank)]

"Spatial Storage Ring?" wondered Chaos, as he glanced at the equipment, which offered no bonus stat.

[Spatial Storage Ring (X-Rank)]

A special ring infused with a Spatial Cube Jewel, which possesses a pocket dimension inside.

It can store as many as 9999 items, which each one can stack up to 9999 times.

Only items can be stored, living beings cannot be stored.

…

As simple as that!

Chaos felt the instinct of… eating this!

If he eats it, can't he get a skill of spatial storage instead?

"As you can see, my lord, this item will aid you in- UAH! W-What are you doing?!" asked Belphegor, as he saw Chaos eating the ring, crunching it with his teeth, and then swallowing it.

"I ate it." Said Chaos innocently.

Ding!

[You learned the [Spatial Storage] Skill!]

"I got it… I got a Spatial Storage Skill. Thanks for giving me this treat," said Chaos, petting Belphegor's skull with his claws.

"Ah! Right… wait, so it also works with artifacts? T-Then… Maybe you should try eating the little ones… but don't eat the big ones, please! They are very precious and have very intricate functions…" said Belphegor.

"Hm… Fine, I will respect the work of my parents. Let me eat the little ones, can you bring them to me?" asked Chaos.

"F-For sure!" said Belphegor, rushing around the room until a little pile of items was brought to him.

A pair of glasses named Appraisal Glasses, a bracelet with a small compass on it named Mapping Bracelet, a ring with a phantasmal jewel named Soul-seeing Ring, a crown made of gold with several blue jewels named Thoughtful Crown, and a necklace with an oval-shaped yellow jewel named Perception Necklace.

When Chaos ate them all like there was no tomorrow, he gained several useful Skills right away, surprising even Belphegor, it seemed that the power of his new lord was outstanding.

Ding!

[You learned the following Skills]

[Appraisal]: The Ability to see other living beings' information through the Universal Origin Records.

[Mental Mapping]: The Ability to mentally map areas and permanently remember their appearance.

[Paranormal Perception]: The Ability to be capable of seeing paranormal entities such as souls, ghosts that are not materializing themselves, and more.

[Concentration]: The Ability to concentrate and focus your mind.

[Thought Acceleration]: The Ability to increase your thought speed.

[Perception]: The Ability to perceive your surroundings with sharp senses.

Chaos was enlightened by the descriptions of each new Skill he acquired, they couldn't level up like his Abilities, but they were already useful with what they came with.

"Amazing… This will help me a lot, thanks, Belphegor," said Chaos.

"Ah, it is but a pleasure to serve my lord as much as I can… Now, there is something I want you to see, the most important and perhaps the most accessible to use an artifact as of now, and one of the greatest ones that Master Ainz had ever created…" said Belphegor, as Chaos followed him to the corner of the room, where there was a strange artifact that seemed to be two transparent flasks of around 20 meters in size interconnected with several tubes. There were also gigantic magic inscriptions and runes below and around it.

"What is this?" wondered Chaos, as he tried to Appraise the artifact, but he could not.

"Ah, you can't appraise this item because it does not count as an item, in fact, this is what's called magic technology!" said Belphegor.

"…And what does it do?" asked Chaos.

"Well, what else than… Summoning!" said Belphegor.

Chaos was left a bit confused.

Summoning? Like… summoning another living being… or maybe unliving too?

"What do you mean? I can summon a being through this? Just like that?" asked Chaos with confusion clear on his tone of voice and his near-expressionless face.

"Heh! My lord, this is way more complex than you believe, with this artifact, you can summon an entire army to assist you!" said Belphegor.

"Really? That easy?" asked Chaos.

"Ah… Well, not really, you require materials, surplus, and more importantly, a lot of Mana… Well, you have the mana already," said Belphegor.

"So I require materials? How many?" asked Chaos.

"This Summoning Artifact works in interesting ways. Master Ainz created it as a way to produce new soldiers and allies quickly, and this is how I was born as well! Well, summoned," said Belphegor.

Belphegor flew around the artifact as he began to explain many things.

"By using certain materials, you can randomly summon beings to come to your aid. Master Ainz was able to even determine what kind of beings could be summoned, but after so long, the artifact has been atrophied and it needs to be repaired first. I can repair it, but we require high-quality materials which we lack… For now, only certain monsters can be summoned, nothing too strong," said Belphegor.

"That sounds… great. Are there enough materials to summon anything now?" asked Chaos.

"Nothing to really talk about! We are mostly empty of valuable materials. Usually, corpses can also be used alongside souls, which helps a lot in the quality of the summoned being… Eh?"

Belphegor stopped speaking as he suddenly saw a group of monsters walking downstairs and getting inside the room…

They were many Will-o-wisps, statues, the cursed brooms, and some living armors, all of them were particularly quite weak.

What did they suddenly come here?

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