He handed the notebook of Luluwo over, and Hades accepted it without hesitation.

He watched the others teleport away through the bonfire while he started flipping through the notebook.

It recorded the exploration information of the Skyrim Strategy Group on the Duke’s Library and the Library Tower, along with some descriptions of the surrounding situations. Various messy bits of information were also written in a chaotic manner, indicating it was indeed an original work.

To truly make these notes into a strategy guide, it would take a professional strategy maker to summarize them.

Hades didn’t leave with the others purely because he still had some stamina left, and the situation of the Library Tower had not changed. The brass horn was closed, so there was no worry of it causing the crystals on his body to grow rapidly.

As a researcher in the field of combat magic, even when acting alone, he had considerable combat power. Furthermore, what set him apart as a magician was his naturally enormous reserve of magic power, exceeding that of ordinary people.

In the recent second battle with the White Dragon Heiss, Turci’s magic power was almost drained, but for Hades, he had only used half of his reserves.

He hoped to stay by the Library Tower and immerse himself in the atmosphere of crystal magic a bit longer, as it would help him think.

The notebook of Luluwo provided several exploratory routes for reference. After looking through it, Hades found two places of interest to him.

The first was a route leading to the outside of the Library Tower. This outside did not refer to the Duke’s Library but to an area further beyond.

According to the notebook, there was a hidden door at the base of the Library Tower leading to the outside, where there lay a lush forest filled with numerous crystal giant puppets. It looked like a peaceful but, at a glance, challenging place.

The Skyrim Strategy Group did not explore that forest in depth; they only had time for a quick glance before leaving, concluding that the forest seemed to hold nothing but trees.

Hades wanted to take a look, purely to study the crystal giant puppets, a life form similar to elemental creatures.

The second place that interested him was the very top of the Library Tower.

Theoretically, the upper level, where the brass horn was located, was the highest level that adventurers could reach using the steps, but it was not the top of the Library Tower.

Hades looked up and clearly saw cells and stairs at the topmost part, but the path to the topmost stairs was disconnected from the current route.

The Skyrim Strategy Group’s notes provided a clue to finding the path to that high platform, since the Duke’s Library contained mechanisms like elevators that might help them reach the top of the Library Tower.

Hades felt the uneven surface of the luminous stone mask, raised his head to glance at the topmost cell, and estimated the distance.

The height difference was about over a hundred meters from him. If it were Fingerley, it might take a couple of powerful jumps to reach it.

Such a physical feat was unimaginable for a physically frail magician like himself, who didn’t even have the possibility of climbing slowly via bookshelves.

It seemed he could only advance according to the problem-solving approach provided by the Skyrim Strategy Group.

Hades walked down the staircase, with all monsters along the way cleared, posing no threat. This gave him time to feel the denser magic power in the air of the Library Tower compared to other areas.

Passing by an empty cell, his steps suddenly halted.

In others’ perspectives, this cell appeared unremarkable, but in his eyes, a different scene unfolded.

"That library is a mountain of knowledge, and right in front of you is such a treasure, yet it’s trapped here and unable to move. You can surely understand how I feel, right?"

An elderly voice echoed in Hades’ ear. He immediately looked in the direction of the voice, only to see a spectral spiritual body sitting inside a cell separated by an iron grille.

The most striking feature of this spiritual body was its exceptionally large hat.

"Rogen?"

Hades immediately recognized the identity of this spiritual body.

As someone who had been studying crystal magic from the very start, he held Big Hat Logan, the most distinguished figure in the crystal magic field, in high esteem.

To see Logan here surprised even him.

Why was his spiritual body here?

Was he speaking to me?

"I will definitely leave this prison; I have a feeling that the White Dragon Heiss will greatly advance my research."

"You must do your best as well. Don’t turn into a ghost. When my research yields new progress, I still hope you’ll be the first witness."

After saying this, Logan’s spiritual body fell into a loop, repeating the same phrases.

Hades understood the situation now; this spiritual body was a residual echo of Logan from a certain time, repeating only these few sentences.

"These words are intended for someone specific."

And it seemed that person held significant importance to Logan. 𝐟𝐫𝕖𝗲𝘄𝚎𝗯𝕟𝐨𝕧𝐞𝚕.𝕔𝕠𝐦

"Why can I see this?"

When passing by this place with Turci and the others earlier, the cell was clearly empty with nothing inside. Why could he see it now that he was alone?