Su Xiao quickly walked out of the village. Although he used the Boundary Line to pull down the signal flare before it could explode, it left a trail of red smoke rising straight into the sky.
If the signal flare had fully exploded, undead soldiers within a dozen kilometers would have swarmed here. But with only the smoke trail, the number of undead soldiers attracted would be limited.
As soon as Su Xiao left the small village, another signal flare soared into the sky and exploded about half a kilometer away from him.
Once this signal flare exploded, several more signal flares erupted in the sky within a few kilometers, instantly creating a series of red smoke spheres in the air.
The most attention-grabbing aspect of the signal flare was not the red smoke after the explosion, but the piercing sound of the explosion, which could travel far.
