Ancestor is the world's most-popular ''podcast novel.'' A serialized audiobook delivered in 20 weekly episodes, Ancestor's first run played to an audience of more than 30,000 die-hard fans in 31 countries. All told, fans have downloaded more than 700,000 episodes of Ancestor. En route to a rousing final episode, Ancestor was the #1 literary podcast on iTunes and every other podcast index, including Morpheus, FeedBurner, Podiobooks.com and Podcast Alley. The book's popularity caught the attention of the broadcast world, and was the first audiobook broadcast on Sirius Satellite to the company's 4.3 million subscribers. ANCESTOR On a remote island in Lake Superior, scientists struggle to solve the problem of xenotransplantation -- using animal tissue to replace failing human organs. Funded by the biotech firm Genada, Dr. Claus Rhumkorrf seeks to recreate the ancestor of all mammals. By getting back to the root of our creation, Rhumkorrf hopes to create an animal with human internal organs. Rhumkorrf discovers the ancestor, but it is not the small, harmless creature he envisions. His genius gives birth to a fast-growing evil that nature eradicated 250 million years ago -- an evil now on the loose, and very, very hungry.