For some details of HP, there are the following questions.

2. Sybil, the divination teacher at Hogwarts? Professor Trelawney

3, the password is pure, the stone gate is embedded in the stone wall, it is a long and narrow basement, the ceiling and walls are made of rough stones, the green lights, the lounge is carved chairs, and the internal dormitory has not been introduced yet.

4, ordinary family, only said that Sirius had been to James' house when he was at odds.

I don't think I mentioned it.

6. Often, when Harry was one year old.

7. It was Sirius, but later it was changed to Pettigrew, and Pettigrew defected.