Indiana Jones and the Kingdom of the Crystal Skull focus on the "Star Wars" prequels. In 2000, Spielberg's son asked when the next "Indiana Jones" film would be released, which made him interested in reviving the project. The same year, Ford, Lucas, Spielberg, Frank Marshall and Kathleen Kennedy met during the American Film Institute's tribute to Ford, and decided they wanted to enjoy the experience of making an "Indiana Jones" film again. Spielberg also found returning to the series a respite from his many dark films during this period, such as "A.I. Artificial Intelligence", "Minority Report", and "Munich". Lucas convinced Spielberg to use aliens in the plot by saying
Indiana Jones (franchise) fact, rather than myth." MacGregor's favorite book was "The Seven Veils", which featured real-life explorer Percy Fawcett and the death of Indiana's wife, Deirdre Campbell. Martin Caidin wrote the next two novels in Bantam's series, "Indiana Jones and the Sky Pirates" and "Indiana Jones and the White Witch". These feature Gale Parker as Indiana's sidekick; they introduced afterwords to the series, regarding each novel's historical context. Caidin became ill, so Max McCoy took over in 1995 and wrote the final four novels: "Indiana Jones and the Philosopher's Stone", "Indiana Jones and the Dinosaur Eggs", "Indiana Jones and the Hollow Earth",