[Okay.] Yu Nianzhen smiled and rubbed Jiang Yue's head.
[Check for formations.]
Jiang Yue did not hesitate. He opened his illusion eyes and looked around.
However, his face turned pale as soon as the eyes were open. His complexion turned ugly, and a chill crept up his spine.
[What's the matter?]
[There is a formation on the ground. We are barely at its edge.] Jiang Yue informed, and Yu Nianzhen was startled.
Neither expected to encounter a formation as soon as they climbed to the second floor.
Fortunately, they didn't walk around when they entered the room. Otherwise, they would have stepped into the formation, which would have alarmed the Lu family.
[What kind of formation is it?]
[It is a level four phantom formation. When an intruder enters the formation, it will trap them in an illusion. They won't realise they are trapped until it is too late.]
Jiang Yue sweated a little when he explained the formation.