Dumbledore put up a hand to silence them. “I am not angry. In fact, the opposite, I’m very glad to see you taking things into your own hands without harming anyone. Now, I have something important to talk to you all about, so I would like to ask if you would kindly meet me in my office next Wednesday night at 8,” he said.
“That’s… but Professor why then?”
“Because that will give you a week to think it through before you leave Hogwarts,” he said. “Now I think it is time for you all to make your way back to the Towers before any other trouble comes,” he said, with a smile.

On their way back to the towers, however, they were met by Mulciber and Avery. Before the Lions had a chance to raise their wands, the Snakes had pointed their wands at them and yelled “SECTUMSEMPRA!” and ran off.
Lily screamed as blood splashed onto her. She looked down and saw it was Remus’ blood. Everyone bent down to put pressure on the many cuts that had appeared on his body, but nothing helped.
“Someone get Madame Pomfrey,” Lily yelled.