There are a lot of wonderful treasures in Harry Potter, and I think the most amazing is the House of Requirement. Also known as "houses of coming and going". You can only get in when one really needs it. It is intermittent, but when it appears, it is always arranged to meet the needs of the person asking for help.
This room is located on the eighth floor of Hogwarts Castle opposite the tapestry of the Troll Stick Playing Fool Barnaba. If you want to enter this room, then you need to concentrate your mind, think about what you need, walk through there, and then the House of Requirement will appear. At the same time, Hermione had said that if the house of requirement and the people in it could not be shown on the map, the names of the people who entered would disappear directly on the map. And in Harry Potter and the Deathly Hallows, Ron also confirms this.
Such a magical house, in the movie Harry Potter and the Deathly Hallows, was accidentally burned by Goyle, along with Ravenclaw's crown, and closed. The follow-up doesn't say whether it's closed forever, maybe at some point, when you need it most, he'll turn it back on.
![Dream of the Red Chamber: Jia Baoyu is fierce and evil to the milkmaid, does Jia Lian respond to the grandmother's needs? Jia Baoyu is not a fierce and evil person. Jia Baoyu did not confront Grandma Li in person, and he could not talk about being fierce and evil. Bao Yu was drunk, so he lost his temper behind his back, saying that he wanted to get rid of Grandma Li, and the drunkard's words could not be taken seriously. Why is Jia Lian so good to the grandmother? Jia Baoyu likes girls and hates married women, and Jia Lian likes married women.[fig]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)