The third book in Richard Kadrey's Sandman Slim series, Aloha from Hell, comes out today. And to celebrate, we're giving you a chance to ask Kadrey some questions about urban fantasy, navigating the underworld, or whatever else you want. The best questions will be posted to Kadrey at an event on October 24, and we'll have a video of him answering them shortly afterwards. So what do you most want to know?