Blood Test

"It is not what we want but what is required for you to enter the chamber in which we have stored the books." The man said.

"Oh well if it is a matter of an unmovable door, I can just destroy it." Zell replied. "It would be super easy, where is the door?"

"No!" The little man jumped out of his house. "You will not go around and destroy our property because you don't want to follow the client's orders! Have some respect for other peoples' things! We did this favor to you humans with the promise that you would respect us and treat us as you would an equal. Not act like some barbarian."

"Fine." Zell said with a sigh. "What was my grandfather's request? Do I have to go through some trial, and face some incredible beast? Or am I to just answer a riddle or save a kingdom?"