No spoilers here, but if you care enough to care, you've probably finished it.
Book 7 showed up on Shabbos, and was delivered to our front door by the mail lady. "Here's your book!" she said cheerily. So I was spared having to leave it outside all of Shabbos, but the torture was even more exquisite having it in my hands. "Put it away," MHH pleaded. "It's Shabbos!" I ignored him, "C'mere, Iyyar," I said coaxingly, "Come drool on the box and soften up the cardboard. Come chew on the cardboard. It's nice and tasty!" Nothing doing, and I had to wait till after 9 to open it up. I got through about 200 pages motzai Shabbos (in bed by 12:45) and broke it out again Sunday night, finishing at 1:45 Monday morning.
And what the... we STILL don't know the answer to my most burning question! Although I hear that there are JK Rowling interviews coming up in which more beans will be spilled. Right now, my babysitter is having her turn with the book, and I will wait until I get through my current mound of work before taking a second read.
In other news, Eris is finished, except for end-weaving, and my long-suffering DSIL finally has a sweater in progress! I'm making her a Spiral Yoke out of sage green Montera I had in my stash, and I now have one sleeve and about 5 inches of the body ( 17 sts/4 inches on size 8, if you are interested in such things.) They are coming on the 7th and staying for almost 2 weeks, so I'm hoping to have it done by the time they leave.