While reading fiction can take you places you might never imagine, the same can also be true of writing it, professionally-speaking. Take author E. Lockhart, whose work as a novelist led her to write Whistle: A New Gotham City Hero (paperback, Kindle), in which she not only introduces a new superhero, but — in a case of turnabout being fair play — also introduces a super sidekick with literary roots of her own.