"It's time for me to leave." said the Black Witch. "I haven't been outside for a long time but I don't have any more books to read."

The Black Witch goes and browse the world. 

One day, she is approached by a woman.

"Ms. Black Witch, my headmaster wishes to see you. Please come with me. My name is Poppy."

"Oh, your headmaster is Fjol. Sure, I can meet him."

The Black Witch meets with Fjol.

"Black Witch, I want to hire you as an instructor. Please teach these students some magic. I'll give you some grimoire that I've collected for you." said Fjol.

"Ok, but on one condition. Show me what the current magic skills are."

"Poppy, please demonstrate."

"Ok, headmaster. Ice magic."

The room turned cold and ice particles began forming. Soon, large ice crystals began to form.

"Interesting, do you know how to do ice spike?"

The Black Witch creates an ice spike.

Poppy said "Ms. Black Witch. No, I don't. I've never seen this before."

"This is why I want you to teach the students. Some students in the past would have been considered as gifted. But, the current testing has made them become useless. You've read many books. I'm sure you can share your knowledge." said Fjol with pleading eyes.

The Black Witch began teaching the class. At the same time, she used her proxies to infiltrate different magical schools and their libraries.

Afterwards, she goes back to her isolated home and doesn't come out again until she runs out of books.