เสียงที่ใช้ร่วมกัน

Lina frowned. She had no idea what it meant, but something inside her told her this wasn’t ordinary. That night she couldn’t sleep. The words on the paper kept repeating in her mind.The next morning, Lina decided to return to the old library street. As she walked around the building, she noticed a small metal door behind the library she had never seen before. It looked abandoned.