Book excerpt: The acclaimed author of the intensely powerful novel Pretty Birds, Scott Simon now gives us a story that is both laugh-out-loud funny and heart-piercing–as sprawling and brawling as Chicago, where politics is a contact sport. The mayor of Chicago is found in his office late at night, sitting in his boxer shorts, facedown dead in a pizza. The mayor was a hero and a rascal: dynamic, charming, ingenious, corruptible, and a masterly manipulator. The city mourns. But it’s discovered that the mayor was murdered–shortly after he may have begun to squeal on some of his colleagues at City Hall. Over the next four days, police race to find the mayor’s killer, while the politicians who bemoan his passing scramble for his throne.