Jia Lan picked up the lightweight dimensional bag woven with phase spider silk and carefully opened the bag to inspect it.

  This half-moon-shaped flat bag is just the right size and depth for a palm to fit in when not in use.

  He used to have a similar space item, but it was of a higher grade than the dimensional bag.

  However, he did not carry this item when he was frozen, and his whereabouts are unknown.

  Thinking of this, Jia Lan could not help but sigh, and then began to recite various spells and secret keys in a low voice in order to open this dimensional bag.

  Although the dimensional bag has not been opened after dozens of attempts, Jia Lan did not show frustration, but showed a surprised expression!

  In the Kolanburg Library, the grade of the dimensional bags issued varies according to different positions, and the spells and secret keys to open these dimensional bags are naturally different.

  He has tried all the "secondary dimension bag" spell keys applicable to the affiliated college school workers and library staff, but none of them can match.

  This shows that this dimension bag is most likely a "low-level dimension bag" distributed to lecturers of the twelve affiliated colleges, or even a "middle-level dimension bag" distributed to senior managers.

  As for the "high-level dimension bag", there is no need to consider it, because only senior scholars in the laboratories and research institutes of the Kolanburg Library are qualified to wear high-level dimension bags to store various experimental tools and arcane materials.

  Despite experiencing major disasters such as the earth vein explosion, Jia Lan always believed that senior scholars like his teacher would not die easily.

  Even if those senior scholars were unfortunately killed in the earth vein explosion, the place where they fell was definitely not something that lower-level mercenaries such as the Sabretooth Mercenary Group could set foot in.

  Unmanned laboratories are far more dangerous than managed laboratories.

  Twenty-seven low-level dimension bag spell keys?

  No!

  Thirteen intermediate-level dimensional bag spell keys!

  The fourth... the ninth... the eleventh!!!

  As the obscure secret spells came out of Jia Lan's mouth, the dimensional bag shone with a faint fluorescence.

  Jia Lan reached into the pocket that was less than half a palm deep, and suddenly, his entire palm was completely inside!

  Although he had guessed the approximate ownership of this dimensional bag through the classification of spell keys, Jia Lan still couldn't suppress his excitement.

  After all, he had almost nothing at the moment, and the higher the level of the dimensional bag, the higher the identity of the wearer, and the greater the value of the items that might be stored in it!

  While the dimensional bag was opened, Jia Lan had quickly reached out and grabbed one of the items and took it out.

  It was a broken stone slab, about the size of a palm, with a circular symbol engraved on it, and inside the symbol were complex runes and spells.

  "A...Y...M."

  Jia Lan read the words on the stone tablet with great effort, and studied the cracked stone tablet over and over again with doubts, but failed to find any abnormalities.

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  He could only put the stone tablet down temporarily and continue to explore the dimension bag, and took out a small human-shaped stone statue, a heavy stone box about one foot long, a transparent gem as big as an egg, and a silver bone pocket horn as thick and long as a thumb.

  There is also a crystal plate two palms wide, a set of eighteen crystal mirrors, a large number of thin stone pages similar to the size of book pages, and a large number of various rare stones, gemstones, huge crystal ores, cutting tools, and carving tools.

  In addition, there are a large number of scattered files, notes, books, conventional experimental equipment, and various arcane materials.

  ...

  Judging from the various items in this mid-level dimension bag, it is very likely to belong to a super-level wizard, that is, a spellcaster commonly known as a "grand wizard".

  There are dozens of such super-class mages in the Kolanburg Library.

  Most of them do not participate in the management of the library and the academy, but conduct arcane research alone in their own mage towers.

  Therefore, Jia Lan could not infer the identity of this mage from the items in his dimensional bag for a while.

  However, is this super-class mage a stonemason?

  Jia Lan had many questions about the items in this mid-level dimensional bag.

  Although there are many items in the bag, those who are familiar with the storage habits of spellcasters can see that this dimensional bag is not their main storage equipment, but more like a special tool bag or sundry bag, which is specially used to store various items needed for work.

  This also means that there are probably no valuables in the bag. However, Jia Lan was not frustrated because if this was a private dimension bag, he might not be able to open it.

  The internal space capacity of this intermediate dimension bag is about 150 standard dimension base units, which is twice that of the primary dimension bag, but only half of the high-level dimension bag.

  For a spellcaster who carries all kinds of messy items with him, this capacity is not large, but for Jia Lan, it is enough for the time being.

  Jia Lan carefully checked all the items in the dimension bag, and then carefully put the items taken out back into the bag, leaving only the files, notes and books.

  As a mage with a master, Jia Lan knew that he should not easily turn over the task items of other spellcasters unless he knew something about them. This is completely different from those self-taught wild mages who are always curious about any items related to the arcane, regardless of their potential dangers.

  Jia Lan carefully flipped through the broken files and notes, and sorted them according to his own habits.

  Most of these files were records of arcane experiments, interspersed with some scattered ancient book fragments, covering multiple fields such as magic arrays, totems, soul energy, and psychic energy.

  However, these contents were beyond Jia Lan's current level of cognition.

  He shook his head regretfully, put away these precious arcane materials, and took out a stone box instead.

  The stone box seemed to be carved from ordinary bluestone, with a long history, mottled appearance, and full of cracks and gaps.

  The runes and magic array patterns on the lid were blurred.

  Gently push open the lid, and there is a crescent-shaped pocket knife, a wine glass and three small balls inside.

  These items are likely to be the most precious existence in the dimension bag.

  Although they seem inconspicuous, Jia Lan learned from the notes of this super-class wizard that this is actually a complete set of ancient holy objects, or more precisely, a set of contract tools.

  Although Jia Lan has not yet clarified its specific function, according to the notes, the contract signed with this set of tools cannot be violated even by the devil who is best at contract manipulation.

  The existence of this set of tools also reveals the main work content of this super-class mage - signing contracts with various creatures or non-living things.

  Jia Lan is no stranger to contracts. In the past, when his teacher conducted experiments on foreign summoning, he was often responsible for signing contracts with those foreign creatures of various forms.

  Whether voluntary or involuntary, mages can always find a way to get the other party to sign the contract.

  This time the harvest is quite fruitful, but it takes a lot of time to truly master these items.

  With Jia Lan's current strength, the appearance of these items is almost a torture for him - he cannot use them.

  Taking this set of contract-making holy objects as an example, are the creatures that need to be used to sign a strong contract the ones he can currently contact?

  And those items with unknown uses need to be treated with more caution.

  Jia Lan had witnessed an ignorant person who mistook a blood-red potion that was said to be from a relic and emitting a holy light for an angel potion and drank it.

  Then, he disappeared in front of everyone, without any arcane fluctuations, plane fluctuations, or any fluctuations, as if he had never existed.

  Unfortunately, all researchers at the Kolanburg Library, including Jia Lan, ultimately failed to determine the true purpose of the potion.

  Therefore, although the harvest was fruitful this time, the only things that could really play a role, apart from this dimensional bag with storage function, were the arcane materials and various tools.