In the end, Billy decided not to buy those skills, after all, the very moment he manages to read or write a single word by himself, he would get those skills.
"Do you keep registers of things related to the dungeons here?" Billy asked.
"We have, but it is mostly documents regarding the guild and its members," Gerald replied. "Many things happen and we forget about them. Like those who were banned, those who increased their ranks. We also keep information about the special monsters that occasionally appear. However, I decided to buy many books regarding the history of the state for the sake of preservation."