After this morning, Nathan felt that Gussie was a real talent and he changed his mentality as a teacher.
He wanted to train Gussie in a stricter way and produce in her a master.
After the morning exercise, Nathan let Gussie wait for him at the gate of the villa, and after rummaging through the house for a while, he took out a notebook and handed it to Gussie.
"What is this?" Gussie asked in surprise.
"Go back and read it yourself. Think it over slowly, and ask me anytime you don't understand." Nathan didn't say much. He closed the door and went back.
Gussie opened the cover and found the title page read "The Records of Actual Combat."
On the next page was the preface.