Qian Wanyu listened carefully, but she heard nothing at all. She shook her head. "Why? Did you hear something?"
"Seventh Sister, listen closely."
Dongfang Minghui even turned sideways, pressing her ear firmly against the wall with a grave expression as she listened.
Qian Wanyu extended her spiritual power, but still heard nothing. Instead, her ninth sister's solemn expression gave her a fright.
"It's a dripping sound. But it's strange-why does it seem to be getting closer?"
After saying that, she felt a chill run through her whole body. Could some strange living creature also be imprisoned in the Blood Baleful Alliance's stone chamber?
"Come on. Stay close to me."
Qian Wanyu habitually took her hand, holding the torch in her left hand, then stopped after a few steps.
"Seventh Sister?" Dongfang Minghui gave her a puzzled look.
"The floor here is a little different."
The path before them consisted of square tiles, stretching quite a distance ahead.
Dongfang Minghui took the torch from the heroine and crouched to examine them. In terms of color, this section of the path was slightly darker. In this pitch-black passage, they really would not have noticed any difference without looking closely.
She counted nine squares across and nine down, eighty-one in total.
"Don't tell me this is a Nine-Square Grid?"
Dongfang Minghui scratched her head. She remembered studying this in college, but the eighty-one-square grid before her was the hardest kind of all. She remembered that the person who had devised it was a genius.
Qian Wanyu retreated to their original position, picked up a few small stones from the ground, and tossed them onto the squares in the middle. Only the sound of stones landing echoed through the passage; nothing unusual happened.
Qian Wanyu stepped forward, but before her foot landed, Dongfang Minghui,