Transcript for Kevin Costner Back With New Novel
Kevin Costner's out with a brand-new project. This time it's a book called "The explorers guild" and an adventure novel about the search for a mythical city and sat down with nick watt about being a writer and personal adventure of fatherhood. If you build it, he will come. Reporter: Kevin Costner always thinks big on the big screen. Hey. Reporter: Now he's writing books. We want to be one of the books of the century. Reporter: "The explorers guild," I'll confess, right up my alley. A novel, a graphic novel, a rollicking read. There's some fairly grown-up tough there. Yeah, left to your imagination pretty much. Reporter: You're saying it's my imagination. How dare you -- We're saying, okay, nick, all right. Reporter: All right, Kevin. Would you let your kids read I had? 8 years old it would have to be read to Caden. I think he has to be a dash older but this is the kind of book where, you know, your grandfather could look at a 12-year-old and say let's read "The explorers guild" tonight. Costner thinks this might become a movie. I would probably play Ogden. Reporter: The good Ogden. There are brothers Ogden, John the rugged hero, Arthur slightly buffoonish. Maybe I can talk branagh into playing him. You get your chance to take your cuts and swing for the fences. Will you repeat your successes or are you going to just push on. Reporter: Co-writer John Baird brought him this idea eight years ago and Costner loved it. He thought he would take move he more of a backseat role and adding story lines and dialogue. Reporter: Talking here at cost they're Santa Barbara pad. If I was you I would be tempted to sit right here looking at that view and do nothing else. I know what you mean. Reporter: He says that. He won't do it. I mean obviously your experience in some pretty grand epic movies, TV. Well, I'm not afraid of long. Reporter: "Dances with wolves," 3:56. "The explorers guild" 700 pages. It has heft. There is a girth to it. There's like you want to make it a big sound when it hit the table. Reporter: For "Good morning America," nick watt, ABC news, Santa Barbara, California. "The explorers guild" is in book stores now.
This transcript has been automatically generated and may not be 100% accurate.