Chapter 43 The Mountain Breaking Sword Skill

Marcus closed the book. Marcus had extracted all the contents of this book and other books.

He turned to look at Anja.

Recently, he always got help from Anja when he had come to the library two times, and the formula of the breakthrough of medium-grade strength drug was also inevitably helped by Anja.

Marcus thought for a while and opened one of the books, leaving his notes on it.

In this way, Anja would definitely be able to see it, which was also a return to her.

"Thank you for your help today. I have read all these books."

Marcus put the book in front of her and greeted her with a smile.

"It's finished so soon. I'll pay it back for you later."

Anja waved at Marcus and watched him leave.

She took the books returned by Marcus and looked for the place where they were placed on the bookshelf while reading them idly.

While she was searching, she saw the words in the book.

What was this?

After a while, she opened her mouth wide in surprise after reading these words.