The Adventures of Momo: The Devouring Spring

In the remote mountains lies the town of Quanyin, home to a mysterious "Ghost Spring." Legend has it that every hundred years, the hot spring turns red, and those who bathe in it vanish without a trace. Su Xiaobei receives a mysterious letter and, along with Zhou Yao, Da Hu, and Lin Mo, forms the "Cold Snow Adventure Team." Guided by a talking black cat named Momo, they set out to investigate. As strange phenomena multiply, the four uncover a scientific truth: ancient thermophilic bacteria in an underground cavern periodically release neurotoxins, causing hallucinations and drowning. A century ago, a physician named Xuan Zhen sealed the cave entrance, but now the stone slab is loosening, and the crisis looms anew. — Description from novelcodex.org