Professor Dongdong should be at home right now, right? He's old, let's go find him. Dagon thought for a moment and said: "Who knows the information here? Bishop Paimon and Professor Dongdong live not far from here. Go and invite him to go there with you. This letter is sent to the Wooden Fort giant, so call Goge and ask him to meet me at professor Dongdong's house."