Julie informs me that we already have the fourth book in the Harry Potter series. I didn't see it next to the other three because it wouldn't fit on the shelf in the available space. It's huge.

I thought I remembered buying her books Two, Three, and Four all at once. She was pretty happy about that, as I recall. Of course, when I didn't see the fourth book on the shelf, I assumed I was making that up. It's nice when you suspect yourself of being wrong, but then find you were right. If only it happened more often.

I think it's funny how each book in the series has grown in size. If this keeps up, a single installment will have to come in separate volumes. Eventually, you'll have something that looks like an encyclopedia in your bookcase.