After passing through the cobwebs Will and Book-san were at the end of a corridor, facing a green wall. Part of the corridor wall had fallen, and now it formed a table. On top of the table, there was a plate. And on the side of the table...
Book-san: "A ghost !!!"
A being that emanated an oppressive and sinister aura. An incorporeal being that they had no way to face.
Will sat down neat the table.
Book-san: "What is he doing? Is he possessed? Did the ghost do something to him"
Will looked towards the ghost and said: "Thank you for the meal."
He then took a bite of the food inside the plate.
The ghost laughed: "Ahahah, ahahah. I'm finally free."
Book-san thought they were done for but then the oppressive aura of the ghost disappeared and was replaced by a gentle aura.
The ghost: "Your friend has passed the test and is receiving my inheritance. I have waited in this place for the fated one hundreds of years. I will soon depart this plane and try my luck in the path of the soul. Your friend will wake up when the inheritance process ends. He can answer your questions. It will take a few days depending on his skills."
The ghost begins meditating and Book-san had some time to think.
"This is the so-called blessing in disguise. We are leveling up quite fast in the last few days. It might be because we are at the start of the road. But we still don't have the experience to face those that have walked longer than us. Like the archmage and his underling. If we find the blue-robed mage that entered the labyrinth how will we face him? I feel like all these levels mean that something difficult is ahead.
A few days of waiting is a long time. I wanted to meet the others and go ahead together. But I don't feel like if I talk to the ghost she will change something.
I have been reliant on others too much. I will use this time to improve my skills.
I'll start by checking the comments."
It flies and lets Book-san write on surfaces other than his own, and it's sharper than you think. You can swap out the nib and the casing for special effects.
Currently equipped:
Extra sharp nib: increases damage,
Feather casing: increases flight speed.
You received:
Cookie 
from Daymeah
Warning !!!
Extremely tasty.
You received:
Bottle of greek fire from Daymeah
Book-san: "Thank you for the gifts. The cookie and bottle of greek fire are consumables that I'm sure will be useful later while the magic pen is an item that can be used to increase my fighting strength and versatility.
Book-san materialized the flying pen and made it fly around. After a few failures, Book-san managed to use the pen to fly. Now moving when alone was an option.
While the flying Book-san was making circles in the sky Will was immersed in a dream. A dream he entered when he took the first bite.
...
He saw endless fields of ripe wheat swaying in the wind. He felt his thought calming down. As if the time came to a stop. As if time didn't exist.
He closed his eyes to meditate.
BOOM
He opened his eyes to see the cloud from which the thunderstrike came. The wheat was not ripe anymore. It was spring but the ground was dry and the small wheat plants were dying due to the drought. The sun was hot. The sky was clear except for the cloud. A lonely cloud, just like the one covering the daemons when he went north.
He didn't want to look, he felt scared to look but he had to look. Are they under this cloud too? The daemons.
BOOM
Another thunderstrike illuminated the bottom of the cloud. They were there.
The dream continued and Will returned to the ripe and calming wheat fields. His fast breathing slowed down.
But he then saw some movements. The wheat in the distance was disappearing. The plants fell down as if a wave hit them. And that wave was coming towards him.
He was surrounded.
The last wall of wheat was cut by a sickle and the one holding it was a demon.
Will then found himself on a rock above the clouds. The rock had a small pond of crystalline water in the middle.
Then he saw a bowl in equilibrium on a stick held by someone far away take some of the crystalline water and disappear beyond the clouds.
From a point with no clouds, he saw the silhouette of someone falling. No, he was not falling but jumping from rock to rock, covering hundreds of meters in each jump. He was going towards a small city, at the bottom of the mountain. The mountain was so steep that it was basically vertical. Only some rock a few hundred meters apart could be used as support. The plane at the bottom of the mountain where the city was situated was kilometers below Will.
Will felt someone pushing him. He was about to fall but the dream changed.
The push just made him take a step forward. The clouds and the rocks disappeared and Will found himself into a banquet.
A voice said: "Come or the food we made will get cold. I know our food is nothing compared with what you can cook but we wanted to do something for you. You are the guest of honor. The person who contributed most to the cause other than King Gerald. Without you, this banquet wouldn't be possible. Look, there are humans and demons and people from other races. Guests, raise your cups! Let's thank the person who brought us together, and let's toast to our cause. For we, together will be victorious. They can't stop us. We will defeat the gods and the devils.
The guests raised their cups and their voices, there were so many people talking and laughing that Will did not understand what they said but he could feel their enthusiasm.
A guest with a dragon tattoo moved his hand and a fireball appeared in the sky. The fireball exploded in a multitude of colors and disappeared like a firework.
He was not sure why these people in his dream were fighting devils and gods. It was the first time he heard about devils.
For a second an idea came to his mind. If humans and demons could unite what could they achieve. Maybe they could actually fight against the gods.
But as soon as the idea came he dismissed it. Demons and humans could never make peace. It was impossible. Everything he saw was just a dream. A fairy tale. Why did the ghost want to show him this dream?
Like that Will woke up and was surprised to see Book-San flying around and a ghost standing beside him.
The ghost: "Ohh, impressive. I thought that it would take you a few days but it only took you a night. You are indeed compatible with my inheritance. So what did you think of what you saw ?"
Will was a bit hesitant to answer because he didn't want to hurt the ghost's feelings but he decided that saying the truth was the best thing to do: "It was a nice dream."
The ghost started laughing: "Kid, what are you talking about? Dream. What dream? Those were some of my memories. What you saw happened hundreds of years ago."
Will's knowledge of the world was toppled in an instant. "That... That actually happened? How is it possible? "
Thanks for the chapter.