Alibran wrote:Spoiler
When Sirius fell through the arch, as far as we know, he wasn't dead. (I mainly believe this because Bellatrix Lestrange doesn't tend to kill people outright, and he still appeared to be conscious when he fell through.) So, what happens if someone crosses through the arch into the world of the dead without actually dying? Maybe no-one's done it before, so Dumbledore's assuming he's dead so as not to give Harry false hope. Or maybe people have gone through before and not come back, but that doesn't necessarily mean it's impossible to come back. You may gather I'm very fond of Sirius, and I really don't want him to be dead.
Spoiler
I love Sirius, too, but I think it would be pretty cheap if he turned out not to be dead. It would feel like JKR was teasing us: "Sirius is dead! No, wait, I was just kidding! He's not dead, he's just been hiding behind the veil all this time!" Although I don't want Sirius to be dead, now that he is dead I hope he stays dead.
I do, however, hope that Harry will find some way to communicate with him. Too bad he broke that mirror...
I do, however, hope that Harry will find some way to communicate with him. Too bad he broke that mirror...