The main content of the ninth chapter of the thatched cottage was as follows: When Charlotte realized that Grandpa and Grandma had disappeared, she panicked. She quickly asked around, but no one had heard of the whereabouts of these two people. She had no choice but to return to the village and start thinking of a solution with her friends. They began to investigate the entire village to see if anyone had seen the elder and Grandma Ai go missing. They found that the elder's back was very hunched and it was difficult for him to walk. Grandma Ai was holding a wooden stick in her hand as if she was hitting something. They also found a dilapidated house piled on the ground in the corner of the village. They thought that this house might be where Grandpa and Grandma Ai lived. Therefore, they decided to go on an adventure. Inside the house, they found a shabby straw hut. It was very dirty, but they could see that some people were living there. They found Grandpa and Grandma Ai in the house, worrying about their livelihood. Charlotte and her friends were surprised because they didn't know why Grandpa and Grandma were here. However, they still decided to talk to their elder and Grandma Ai. They told Grandpa and Grandma Ai that they were worried about their safety and hoped that Grandpa and Grandma Ai could go home. Grandpa and Grandma Ai were very grateful to Charlotte and her friends for their concern. They told Charlotte and her friends that they had left the village because their father had been taken away by a greedy man. They hoped to find that person and save their father. Charlotte and her friends were very supportive of Grandpa and Grandma's decision. Together, they came up with a plan in the hope of saving her father.