The water-like spiritual patterns on the jade tablet slowly rippled outwards.
Circle after circle, they surrounded everyone.
When Song Yan approached within ten feet of the mountain wall, the water-like spiritual patterns drifted away from him, and the mountain wall before his eyes vanished.
In its place was an empty Immortal Cave.
"Is it an Illusion Formation?"
Song Yan reached out, wanting to touch the spiritual patterns, but his hand met nothing. "What a marvelous treasure, it can bypass the Illusion Formation directly and reveal the true appearance."
Formations usually need to be broken by disturbing the Formation's core or base.
Of course, if one's Realm far exceeds that of the Formation master, a forceful breakthrough is also possible.
Leaving aside these rare situations, breaking a Formation without external aids requires extremely strong insight and understanding of Formations.
Song Yan happened to have a slight understanding of Formations.
