Slughorn definately knows something about Voldemort. And it seems that Sluggy is scared of him. I wonder if more happened than just that one memory.

It looks like Ron's accident has put him and Hermione back together. That was tough seeing them argue. Not that they don't usually.

I think it's brilliant that Harry's going to use Kreacher and Dobby to spy on Malfoy. I'm liking Dobby more and more with each book.