Digging To Survive: I Can See Hints - Chapter 583 - The Mysterious Pied Piper Of The Temple

... flute.

"If I'm not wrong, this gigantic temple is the legendary echo wall. As long as you stand in the right spot and shout loudly, or make any sound, the sound will come back from all directions, forming an imposing aura of an army!"

James seemed to have recalled such legends as well. He felt that the mystical echo wall could only be seen in the relevant tourist spots.

He never expected it to become a means for someone to attack outsiders, making it impossible to g ...