think that the latest information was that Sylvia was half way through writing her fourth book. I am not sure how much longer it will take her to finish writing the book. Then I would assume; she would have to present it to her editors and such and then go back and write the revisions. I seriously hope that this entire process doesn't take yet another year before we see the next installment. Sigh!
Both books will be out within a year from entwined