"Luckily, I've come across this kind of formation before, otherwise I would have been trapped again."
Seeing the formation, Li Chen actually breathed a sigh of relief. He thought for a moment, took out several Spirit Crystals, and began setting them up.
Since entering the relic, Li Chen had learned formations from Fourth Grandfather for a period. He knew that such a formation was not particularly high-grade, but breaking it was quite difficult.
If Li Chen hadn't happened to have cracked such a formation before, he might have been powerless.
Based on the positions in his memory, Li Chen carefully placed the Spirit Crystals.
Eventually, Li Chen clearly felt that an invisible layer of energy around him seemed to disperse automatically, and he stepped inside.
Not until passing through the formation did cold sweat break out on Li Chen's forehead.
Because he discovered that the formation was not just hidden; it also contained a killing force.
