C113 The Sound Underground

Xie Zixiao let out a couple of sleepy grunts, turned over, and continued to sleep, even throwing a leg over Yan Xiuchuan's stomach. Yan Xiuchuan moved his leg aside and nudged Wu Chengzhao, who was sleeping like a log next to him. "Wu Chengzhao, there's a noise."

Wu Chengzhao mumbled, "What noise? Go back to sleep."

Yan Xiuchuan listened for a moment, but the sound disappeared