I have delivered the third Castle novel, The Modern World, to the publisher. I do have another Castle novel planned. I've already done the research and I'm starting it as soon as possible.

Unfortunately the US publisher didn't like the title 'The Modern World' so in America the third Castle novel will be called Dangerous Offspring. The publication date for the UK hardback is April 2007. Blurb and cover art for The Modern World is on The Books page.