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Lin Shen listened carefully and discovered that the sound was coming from the left side of the stone house.
The stone house where they lived was in a row. On the right was the stone house where Ximen Swordsman lived, and to the left was the stone house Lin Shen had occupied during the day.
"Did Yu rent out that room so quickly?" Lin Shen thought to himself that this was quite normal.
It was probably someone who had gone out during the day and hurried back before nightfall.
There were a total of four rows of stone houses with over a dozen rooms in each row. Besides Yu, Lin Shen had only seen a few people during the day; most must have been out hunting Base Variant Creatures.
Lin Shen listened again and speculated that there must be a woman in the left stone house. Even though she was just humming casually, not very loudly, the voice was quite tasteful and seductive.