C407 Mysterious Passageway(1)

"Hmm? Why is there a hole below?" Lee Yi immediately stopped and dug the hole with his sword. However, there was an even bigger hole that was dozens of feet deep. When he jumped down, he saw that it was actually a huge passageway that led to the sea and the depths of the Everlasting Isle.

Lee Yi observed carefully and discovered that there were signs of man-made carvings on the huge passageway