The SS-grade dungeon finally stabilizes. Instantly, a ray of invisible light to the human eye spread from that SS-grade dungeon.
Every S-grade or SS-grade warrior immediately noticed that invisible light that spread around the whole Eden Blue.
For a second everybody became very serious. Everybody is prepared to fight back against Monsters. Nobody knows what is going on. They need to stay extra careful.
Sam also noticed that invisible light that appeared from that SS-grade dungeon. For a second, he also becomes serious and immediately teleports in front of that Dungeon.
He wanted to ensure his aunt was okay alongside Saint John and the others. Fortunately, by using the observation technique he did not feel any kind of abnormality appear inside the dungeon.
But he cannot tell what is going on inside the dungeon. He can only wait for his aunt and the others to come out of the Dungeon.