"I heard something about him being able to make things like that." Senku answered and he paused. "But he took them all away, so I'm guessing he's not willing to help us arm the train."

That had been part of their discussion hadn't it?

"Even if he doesn't want to make projectile weapons or something, it really would benefit everyone to have a knife. I use mine all the time and I've already run across someone that didn't have one. Don't worry, I made him one, but..."