Han Li formed an incantation gesture with his hands and the dozen formation flags began to hover and arrange themselves in a strange formation as they faced the wall. It appeared incomprehensible.
At that moment, Han Li began to softly utter an incantation and a dozen incantation seals flew from his hands, accurately striking each of the flags in the formation. The flags trembled for a moment before shining with various-colored lights and shooting out threads of light that wrapped around each other.
Wang Tiangu and the other cultivators familiar with spell formations frowned. They felt this spell formation seemed somewhat familiar while knowing that they hadn't actually seen such a formation before. They all couldn't help but secretly analyze it as if wishing to discover its secret.