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 and the Tomb of the Gods characters to lend the new run of DH Jones comics in its own tone, but also used Brody, who is his favorite element of "Indiana Jones and the Last Crusade". He chose the Ahnenerbe (which Heinrich Himmler founded) to make the comic "not just Indy versus your typical Nazi goons, [but] Indy up against his counterparts from within the Nazi party". He promised they would be recurring enemies, in a need to give Indiana "his own Doctor Doom or Joker". Indiana Jones and the Tomb of the Gods Indiana Jones and the Tomb of the Gods is a Dark Horse