This note contains spoilers for the book.

First draft manuscript, title provisional, and what I read may well be published as two volumes when it comes out. So I'm being a bit light on spoilers, but I think they're still there.

Ari and her siblings from the Dubious Hills, and Ruth from High Castle go to Heathwill Library, and meet there, and become friends, and deal with Things. Including Randolph's disappearance for a while, and Ari's attraction to Randolph, and their attraction to each other. That should be enough to keep them busy for a while, if not out of trouble.