Feng Yao nodded and suggested, "How about this? I'll set up a Tier 6 Formation outside the Mystic Yin Grotto. Madam Jiao, Fellow Daoist Yuan, and the Fifth-Order Talisman Soldier can operate the formation and provide support from outside."
The five people present were all old monsters who had lived for several centuries, so they were still relatively cautious in everything they did.
Yu Xin did not object either. Having someone provide support from outside was better.
They flew to the vicinity of the Mystic Yin Grotto. Feng Yao took out several hundred Formation Flags swirling with unstable green light. The flags were covered in formation patterns, flickering with spiritual light and radiating astonishing spiritual energy.
This was the Tier 6 Formation, the Mystic Wind Spirit-Locking Formation. Even a Sixth Order Demon Beast would have difficulty escaping after being trapped inside, at least for a while.
With three Deity Transformation Cultivators operating it, trapping a Sixth-Order Ghost for some time would be no problem.
After setting up the formation, Wang Ruyan, Yuan Shu, and the Silver-Shirted Youth remained outside to operate it, while Wang Changsheng, Feng Yao, and Yu Xin entered the Mystic Yin Grotto.
As soon as they entered the Mystic Yin Grotto, a gust of Yin wind blew toward them.
Although the Fifth-Order Ghost had already been exterminated, they still did not dare lower their guard. Feng Yao held the Ghost Seeking Compass, his face filled with vigilance.
The Seven Star Insect suddenly let out a sharp, strange cry and sprayed out a sheet of golden rosy clouds. It struck the wall, and a shrill Ghost Wail rang out. Billowing green smoke appeared, and a hideous ghostly shadow flew out of the stone wall before being swept into the Seven Star Insect's mouth by the golden rosy clouds