With this, Walker had split up too. But this wasn't a bad thing. If something happened the group now formed a chain that could alert the surface of what dangers showed her. Walker also knew he had the party skill to warn them silently to avoid monsters being alerted. This was ideal for them to explore. He also was the best option since he had the shadow wrapping skill and control of other elemental manas. Therefore, he would be able to hide the scent he had from whatever was down her, many underground monsters had a better sense of smell than sight due to the darkness.