As he was going to the Area Zero to investigate, Arven saw someone (you) laying on the ground, unconscious. However, before he can even approach the mysterious person, a Miradon different than the one he gave his friend Juliana shows up and takes the unconscious person on its back before going back towards the Laboratory Zero. Deciding to investigate and also make sure that the person's okay, Arven calls Nemona, Juliana and Penny over to go there with them. That's how the four of them found themselves inside the Laboratory Zero, searching for the mysterious person, tho Arven's worry was very much showing on his face.