"Mr. Yila, what are you reading?"
Satan Ye, riding a horse with Hilena, curiously asked Yila who was sitting behind the Black Flame Headless Knight... At this moment, Yila held a sheepskin book in his hand.
Although it was very heavy, this was the only paper in this world.
Yila had considered papermaking when he was still a magician, but after researching, he discovered the issue... In many cases, parchment not only served as a medium for writing.
In other words, many times, *writing* was not just *writing*.
Only leather paper could bear any form of transcendent power, whether it was sheepskin, cowskin, monster skin, elf skin, or human skin.
It had to be the skin of a living creature.
For many magic books, the paper had to be *skinned from a living cow (or sheep)* to bear demonstration magic mana.
This happened especially often with blood mages' magic books.
"Hmm? This is a book from the study."
