The owl book ( rewriting)

Long ago there use to be magic, potions, mystical creatures, and kingdoms. Now no one Knows about the huge events that's happened in the past including one that beings with a book.

One day while Lui was investing his and roommates house he discovers a hidden room with a book chained up and a owl key next to it.

What would happen if Lui opens up this Unknown book?

Well there's only one way to find out.