Boom!
Li Huai punched through the wall, but he used too much strength, causing countless cracks to appear, making it seem as if the building would collapse at any moment.
Sure enough, at the spot Li Huai had smashed, there was a small compartment containing an item wrapped in black cloth.
Li Huai took it out and peeled away the black cloth layer by layer, revealing a half-piece of a black plaque stained with blood. It was made of obsidian and, aside from a few peculiar patterns, had a character "夜" engraved on it. However, this was only the lower half of the plaque, and Li Huai always felt that the missing upper half must contain some crucial information or text.
"Brother, could this be something left behind accidentally by the perpetrator during their first attempt to kill Shen Aojuan?" Qian Jun speculated.
Of course, that's assuming it was left by Shen Aojuan.