Margaret McAllister wrote on her blog in 2010 that Urchin and the Rage Tide would be the last one in the Mistmantle Chronicles. But, there still is a possibility for a book 6. If we send messages to Bloomsbury Publishing ( (and eventually your local publisher) about how much we love Mistmantle and beg for a new series of book, we might get them to agree with Margaret to write some more books.