Nevin Martell is a devout fan of the old comic strip Calvin and Hobbes, created by Bill Watterson. And who isn’t? Owning a complete edition of the published strips wasn’t enough; he wanted to know more about Watterson, to talk with him and the people who knew and admired him and write a book about what made the man fly as high as Spaceman Spiff. He went out seeking Calvin. Watterson, however, had other ideas.