Explaining divorce to the kids

I've gotten several questions on why we can't go "home" from the boys. Every morning Garrett will say, "We going home now?" It breaks my heart! My sister-in-law, Stacy, suggested a book that would explain some of things that are going on. Yesterday afternoon I stopped by the bookstore and picked up Dinosaurs Divorce. I'm actually surprised at how straight foward the book is. You think that your children are too young to be told what is really going on, but they need to know!