Indiana Jones Chronicles" explains how Indiana becomes solitary and less idealistic following his service in World War I. In "Indiana Jones and the Kingdom of the Crystal Skull", Jones is older and wiser, whereas his sidekicks Mutt and Mac are youthfully arrogant and greedy, respectively. Indiana Jones is modeled after the strong-jawed heroes of the matinée serials and pulp magazines that George Lucas and Steven Spielberg enjoyed in their childhoods (such as the Republic Pictures serials, and the Doc Savage series). Sir H. Rider Haggard's safari guide/big game hunter Allan Quatermain of "King Solomon's Mines", who dates back to 1885, is a
Indiana Jones (franchise) which was initially titled "Find Your Fate Adventure". In 2008, Scholastic released a series of middle-grade novels based on the stories and screenplays. Each book of this edition included several pages of color stills from filming. In May 2009, two new middle-grade books were to begin a new series of "Untold Adventures", though no further books appeared. In the early 1990s, different book series featured childhood and young adult adventures of Indiana Jones in the early decades of the century. Not all were directly tied to the "Young Indiana Jones Chronicles" TV series. The following books are set in Indy's