The publication date for the Australian edition of The Montmaray Journals, Book Three: The FitzOsbornes at War is:
2 April, 2012
Give or take a week or so. I mean, we’re not talking a Harry Potter-style release date here, with security guards monitoring the cartons of books, and an electronic billboard doing a countdown, and thousands of costumed fans lined up outside bookstores at midnight. (Although, if you want to dress up in a 1940s frock and take your Portuguese Water Dog on a leash when you buy your copy, you can, of course! And please send me a photograph.)
EDITED TO ADD: Current publication date for the North American edition is 9 October, 2012, but this could change!