You can never go home again.

I kept thinking about this idea as I read Harry Potter and the Cursed Child. When I read the script last weekend, I wanted to go back to Hogwarts again. It turns out that’s hard to do, even for the creator.

For a work that is to my mind clearly not the “eighth Harry Potter Book,” this might be a harsh way to judge it. So let’s consider this post a reaction, rather than a review. I’ll have more to say later, but these are my first thoughts, unaffected by the opinions of other Potter fans.

My first thought is that honestly, this is a work doesn’t need to exist. Don’t get me wrong, I had fun reading it. It was nice to see old friends grown up and in new situations. But it was also like a strange high school reunion. It’s a disorienting experience to be reunited with people who you’ve known since your childhood and who you walked the most formative experiences of your life with. Everyone is the same, but different—and not always for the better.

At first reading, this story seemed to do the one thing I hoped it would not. It changes the way I see the canonical series ending. And I don’t think the change honors the original series.

To be honest, I’m, disappointed in the play, even though there are plenty of great moments. Ms. Rowling did not write the script, but she does receive the lead credit on the story team. It’s unfortunate that she used her literary Time Turner to go back and revisit something so magnificent. Though I wish it was not true, this addition did not improve what was already perfected. If only the writer’s of this play would have heeded the lesson their protagonists learn about revising history.