"Did you hear any sound?" Edith looked at Brian who was instructing the soldiers to arrange an underground defense line.
"Any sound?" Brian stopped what he was doing, looked around in puzzlement, and said, "No, Miss Edith, I haven't heard anything except the sound of running water."
"Really?" Edith frowned. "Am I mistaken?"
"What kind of sound was that?"
"Like the sound of a horn, very muffled... similar to the sound of water," Edith paused. "It seemed to come from the south."
That was the direction where the witches went for a deep exploration. The turbulent underground river went from north to south, and disappeared in the pitch-black underground cave. Although there were weird illuminating plants on both sides of the river, they could not provide light for far away places. The entire waterway was like an entrance to an abyss which devoured everything she saw.
