Questions about previous HP books (one-four only)

I began reading Harry Potter and the Order of the Phoenix today and I realized I’ve forgotten many important things from the previous books. I was wondering if anyone could give me a summery of books three and four. Since I haven’t read HP in over I year I’m afraid to say I’ve even forgotten Cedric. :smack:

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Thanks very much :smiley:

There’s also the Harry Potter lexicon

which has a chapter guide:

it might, however, be more detailed than you could ever want!