These books continue to be a cute, fun break from longer and heavier books. They definitely have a pretty standard format at this point: meet a few new characters (either all new or accompanied by a familiar face), new characters face some adventures and expand the Oz lore, then we meet all the characters from the other books. Ozma's birthday party in this book as a fun excuse for all the characters to come together, so I enjoyed that! I wish I were reading the illustrated versions of these books though, since I think they would be even better with illustrations.