C684 Watching the Tigers Fight from the Mountains(2)

The man looked around cautiously again, then flashed into the door. After he entered, the two stone walls that were moving outward slowly merged together again. He returned to his original appearance, as if he had never moved at all!

After that person entered the door, he took off the white membrane on his body. He carefully placed it in his bosom, then rushed into a wide passageway