Get on Neville's behalf.

"Where did you see Malfoy?" you ask, your blood boiling.

"I was walking near the Black Lake", Neville explains, "and he was skulking around that area. I didn't see him, and he surprised me. Before I could react, he cursed me."

"The Black Lake?" you ask, your brow creased. "What was Malfoy doing there? Was he visiting the Durmstrang students?"

"No", Neville replies. "He was on the other side of the lake from where their ship was moored."

You stand up.

"I'm going to go and find him", you say.

"I want to come with you!" Neville says, standing up as well.

"No!" you say, pushing Neville back down onto the bed. "You've just been injured. You need to recover."

Neville sits back down, seeing your logic. You don't have the heart to tell him that he would just be a liability. You leave the Hospital Wing, and walk through the corridors of the castle, your wand at the ready, just in case you meet Malfoy early. Outside, a chill wind is blowing, and you pull your cloak closer to you. You nearly decide to forget your idea of ****, but the sight of the Black Lake is enough to refuel your anger, and you step out of the castle.