"Just a minute," Garth Stein says when he answers the phone at his Seattle home. "The kids are kicking soccer balls at me—I've got to get out of the line of fire." It’s understandable that his three boys—ages 17, 15 and 7—are craving their dad’s attention. With an international phenomenon already under his belt (2008’s The Art of Racing in the Rain, which has sold 4 million copies) and a new book about to hit shelves, Stein is frequently on the road these days. He has just returned from a trip to West Virginia, where he did a reading at the famously elegant Greenbrier.