Can you believe the first Harry Potter book, Harry Potter and the Philosopher’s Stone, was published 25 years ago? Makes you feel old, doesn’t it? But it also means it’s no exaggeration to say that a generation has grown up with Harry Potter, and the army of fans, old and new, is as strong as ever. And I can see why. Because we all need a little bit of magic in our lives, don’t we. That’s why it makes such a fabulous party theme! And the official Harry Potter party merchandise has had a makeover. So it’s the perfect time for me to share my ideas to help you theme…