In order to find the potassium nitrate, they needed to create landmines. Two of them carefully looked for a cave and they were succeeded to do that.
In his mind, Potassium Nitrate mostly can be found inside the cave and rocks. Yes! They can find that material under the volcano as that place was surrounded by different kinds of rocks, but the main problem was the Notorious Centaur could locate them once again and that it will be bad for them.
He looked at her with his serious eyes, asking the woman beside her. "Emma, would you like to come with me inside this cave? I don't mind if you didn't want because I messed up the last time we went to the cave." He slowly walked towards the cave, waiting for the woman to respond.
Furthermore, Emma looked at him with persistent eyes, couldn't see that she was hesitating to answer his question. "Of course, Riku! Both of us go here which means we must come back to the Arzotoc village."
