The rest of the Exploration team, who had been expelled from the dungeon earlier, were looking emptily at the vast plain they were currently at. The earlier event had escalated too quickly, their mind couldn't keep up.
How did Basil know the position of the control of the Dungeon? Why didn't Basil discuss things first, before deciding to pull his stunt? What would happen to Basil?!
There were so many things in their mind, they couldn't think of a single thing. However, they were sure of what they were currently feeling—survivor's guilt.
It wouldn't be this way if Basil hadn't saved them all; they were used to the death of a comrade. However, knowing their comrade died to save them, made it all different. They just couldn't shrug off the feeling.
Of course, that was just their fantasy. Basil had never decided to save them in the very first place. He didn't feel the moral obligation to save strangers.