I’ve gotten through two boxes and I can’t tell if there are two or three more to go. But, basically, I pitched everything that had visible mold. Just didn’t even mess with it. Everything else got wiped down with a soapy bleach/water mixture and then set out in the afternoon to dry. It’s almost 90 here again, so they dried rather quickly.
So, I brought them inside and put them on the shelves. The bookshelves are so huge that two boxes of books takes up about a shelf and a half of space.
Here’s the big space I found to dry them: