Amazon and the publisher Grove/Atlantic will give away the electronic download of a new novel, Spirit House, by Christopher G. Moore, to Amazon Kindle customers beginning Friday, in advance of the book's release in print on Aug. 28, the companies announced on Wednesday. Morgan Entrekin, the president and publisher of Grove/Atlantic, said in a statement that the deal with Amazon "is a great way to expand Moore's audience even further." The Kindle, a portable electronic reader that downloads books, newspapers, blogs and magazines, sells on Amazon.com for $359.