Harry knew when he walked into the Gryffindor seventh year boy's dorm room that he was going to have to do a lot of fast talking to get out of this mess.

Ron stood there, by his bed, his expression very curious. The small chest was on top of the bed, opened. It didn't belong there. It belonged under the bed, tucked away, on the side across from Harry's side.

"What's all this?" Ron asked suspiciously.

Harry, much to his chagrin, felt his face grow hot. And all his thoughts unraveled. "Uhhh."

"Harry? What's all this stuff?"

"Why were you poking about under my bed?" Harry suddenly replied defensively.

Ron shrugged innocently, "Dropped my last Drooble's gumball. Thought, you know, since the House elves keep everything pretty clean... Then I found this... Harry, why do you have a little chest with a set of Slytherin robes? And a toothbrush? And...ummm..." Ron's face lit up scarlet "...and...ummm... a bottle of oil?"

Harry stared at him not knowing how to explain this away. "It was a prank." Harry desperately grasped at the first thing that came to mind. "I managed to nick that set of Slytherin robes from the laundry. And the...umm.. toothbrush is... umm..."

Ron gave Harry an incredulous, scathing look and snorted.

"Harry, you're a rotten liar." And he pulled a handful of photos from the bottom of the chest.
Oh shite. Harry didn't realize that those were being kept in the chest as well. Harry's face went pale. Ron dropped the photos on the bed with a offended sort of look.

"I had no idea," Ron said with slow disdain, "that Draco Malfoy was so flexible."