You were sitting on the van with vivi and mystery as the two were asleep. You were just on the computer trying to map out the next mystery

Arthur had just got done fixing the van after it broke down again. As he sighs softly and wipes the sweat off of his face. As he comes and sits next to you and watched what you were doing

You didn’t mind but then you began to question his robotic arm. Maybe that’s a mystery for you to solve but you can either choose to ask him about it or not.