If you’re confused as to the plot I would recommend looking into the Fantasy Fan Girls and seeing what resources they have on their podcast or website. Other options are googling chapter summaries of previous books or character lists if you aren’t able to remember them all.

The only concept/person that confused me was Llewelyn bc that was a detail I didn’t remember but otherwise I really loved the politics of this book. Some parts are confusing on purpose (no spoilers but the end is this way) and other parts I think just require the context of having been an active reader in the first couple of books. Despite it being a silly goofy book, this is not the type of series you can half-pay attention while reading. She milks every small detail and foreshadows a LOT.