In August, the io9 Book Club read Ian McDonald's The Dervish House. Now McDonald is coming to answer your questions about the book on Monday, August 29.
He'll be popping into the comment thread on this very post August 29 between 11:00 and 12:00 AM Pacific Time. Start posting your questions for him now, and he'll answer as many as he can during that hour. I suspect he might answer questions about some of his other books, too, but the focus of this discussion is mainly The Dervish House.
Please be polite!
NOTE: If you're wondering what this whole io9 Book Club thing is all about, you can read about our past meetings here. We meet once per month to discuss a book, and then the author joins us for a chat. In September, we're meeting on the 27th to discuss Cryoburn by Lois McMaster Bujold.