"Ah!"

after a group of strangers entered the secret room, they first came together with a scream, then with a "sizzling" sound, gasping for air!

what they saw were the sword marks on the ice wall, which were thick and dense. They crossed one by one, and there was no sword mark on the ice. These were all visible to ordinary people.

some of them can only be seen by the leader and the thin old man behind the leader. They can see them. Specifically, they can feel the shock in their eyes. The shock in their eyes is more intense than that of their subordinates. It's more than a...