Harry, Ron, and Neville carried Unraveling the Mist to See the Future, pulled open the trapdoor, and walked down from the Divination classroom, leaving the North Tower along the Spiral Staircase.
"I didn't think your homework was actually made up out of thin air..." Neville's round face was full of surprise after listening to Harry and Ron describe their "study method."
The reason Professor Trelawney had kept the three of them back was that Harry and Ron's homework had been outstanding, so she hoped the two of them could help Neville and let him find the knack of Divination too.
Neville tilted his head up to look at the trapdoor high above, made sure Professor Trelawney was not sticking her head down, then lowered his voice and said, "But why... didn't Professor Trelawney notice?"
"That's just her style..." Ron shrugged. "As long as it's something unlucky, she likes reading it."
"She feels a bit like Snape..." Harry concluded. "Snape likes seeing us actually have bad luck, and Professor Trelawney likes seeing the bad luck we make up..."
"So you just have to do what we said earlier. First check what celestial events will appear next month, then make up some unlucky thing related to them. Like Saturn Retrograde... so I'll trip over the wind..."
"It's pretty fun to make things up once in a while, but if you do it for too long..." Ron sighed and said, "Mainly it's because I can't understand it. Otherwise I'd apply to switch to Arithmancy."
"Remember Hermione told us again a couple of days ago... because everyone performed well in class, Professor Vector didn't assign homework. I'm so jealous!"
"Ouch!" Just as he was expressing his envy, he suddenly felt his foot slip, and instantly lost his balance, about to topple backward.
Luckily, Harry