It took a full month and a half to upgrade the Wisdom Book. However, I don’t know if it was because of the difficulty in upgrading the Wisdom Book or because of experience, it took me more than one month to upgrade the other four books.

After four months, the treasure book was used day and night, which was boring and boring, but the big gangster still persisted.

There are five treasure books in total, and at this time they have all been upgraded to golden treasure books.

Five golden treasures lined up on the ground, and the gangster's sense of accomplishment arose.

No one knows more clearly how difficult it is to upgrade these five treasure books than the big gangster.

Even the big gangster himself didn't know whether he could successfully upgrade the five treasure books if he did it again.

It is no exaggeration to say that upgrading from the Silver Book to the Golden Book is not a job that humans do at all!

"Boss, I have finally upgraded the last treasure book successfully. Let's move on to the next step!" The gangster dragon looked at the big gangster and said impatiently.

The brick instrument spirit, earth spirit, wood spirit, and gold spirit also nodded repeatedly.

During these four months, they were also tortured.

Now, they also want to see what the results are!

The big gangster nodded, took a few deep breaths in succession, calmed down his mood, then waved his right hand and opened the five treasure books at the same time.

As the five treasure books were opened, the five treasure books emitted different lights at the same time.

Moreover, the five treasure books slowly left the ground and slung into the air.

The big gangster, the gangster dragon and others were all happy when they saw it.

There was a reaction. After upgrading to the Golden Book, the five books finally responded!

After the five treasure books were suspended in the air, five rays of light of different colors suddenly gathered together and formed a five-colored column of light.

The five-colored light columns looked extremely magnificent and exuded an extremely strange energy.

What kind of energy is that even a big gangster can't explain it clearly.

After the five-colored light columns appeared, the five treasure books also changed.

I saw that the five treasure books began from the corner of the treasure books and gradually turned into nothingness, and they were about to disappear!

The big gangster and others were all shocked and didn't understand what was going on.
Chapter completed!