Leo and Marisa were sitting together in the boys' dormitory. Leo was working on a tricky piece of Potions homework, and Marisa was helping him while practicing her Levitation Charms.
There was a clattering on the stairs.
"Draco!" said Leo. Marisa flung herself onto Leo's bed and pulled the curtains shut. She waited, heart pounding, expecting the curtain to be flung aside at any moment.
"What is it?" asked Leo's voice.
"Hagrid's got a dragon – he's got a dragon and Potter's moving it on Saturday!"
"And? Are you going to tell a teacher or confront Potter or what?"
Silence. Then Draco said: "I'm going to catch him at it and I'm going to drag him to the Headmaster. Then he'll get expelled!"
"Don't you think it might be a good idea to just tell a teacher now? You're running quite a big risk," said Leo. Marisa rolled her eyes.
"Honestly, Leo! You're so cautious you never get anything done!" Marisa heard loud footsteps – apparently Draco was storming off.
"Fine! Just don't blame me when you get detention!" said Leo.
There was silence for a few moments, and then Leo said quietly, "Marisa?"
"No, I fell into a black hole and have been transported to an alternate reality in which you don't exist and my life at Hogwarts is completely awful."
Leo ripped back the curtain. "Stop being silly. Did… did you really… just say that?"
"Of course I did, you idiot. And it's true, too." She smiled broadly. "I mean, without you I'd fail Transfiguration, and History of Magic."
"Yeah," Leo admitted, "but you're one of the best in the class at Potions and you're as good as Potter at Flying and you're better than me at Charms..."
"Oh, shut up," said Marisa, and hugged him.