Indiana Jones and the Mystery of Mount Sinai is the second young adult novel in the Untold Adventures series published by Scholastic Inc in the United States, and by Harper Collins in the United Kingdom, after the release of Indiana Jones and the Kingdom of the Crystal Skull. It was released on May 1, 2009.
After finding a long-lost inscription in a Mayan pyramid, Indiana Jones is hot on the trail of the world's most dangerous weapon — something so important it could decide the fate of World War II. Not surprisingly, a horde of Nazis are after the very same thing!
The chase will take Indy from the Yucatán jungles to Rome, Italy; all the way to Egypt, where the heart of the mystery lies. But to discover the fantastic secret, Indy will have to survive battles with one of the most lethal enemies he's ever met!
- Mrs. Blumenthal (Mentioned only)
- Bert Brodowski
- Marcus Brody (Mentioned only)
- Reginald Brooksbank (Mentioned only)
- Michelangelo Buonarroti (Mentioned only)
- Toma Dzhmiliv
- Erik Jan Eckart
- Sallah Mohammed Faisel el-Kahir (Mentioned only)
- Abdulmutalib bin Ghalib-Roca
- Rudolfo Grazieni
- Heinrich Himmler (Mentioned only)
- Adolf Hitler (Telephone)
- Henry Jones, Sr.
- Indiana Jones
- T. E. Lawrence (Mentioned only)
- Huey McDonald
- Helmut von Mephisto
- Rafaelo Mercati
- Benito Mussolini
- Nichols (Mentioned only)
- Harold Oxley (Mentioned only)
- Pablo Picasso (Mentioned only)
- Pius XII
- Marion Ravenwood (Mentioned only)
- Norman Rockwell (Mentioned only)
- Baroness de Schlembraign
- Helen Margaret Seymour (Mentioned only)
- Castle Wewelsburg (Mentioned only)
- Mount Sinai
- Temple of Hathor
- Port Said
- Mount Sinai
- Ukraine (Mentioned only)
- United States of America
- Vatican City
- The National Geographic Magazine (Mentioned only)
Behind the scenes
The original title of the book was intended to be The Monsters of Mount Sinai in reference of the story's finale, but concerns that the title could be interpreted as anti-Semitic saw a change.
A Nazi with a mechanical arm was an early idea for Arnold Ernst Toht in Raiders of the Lost Ark that was rejected as unrealistic by George Lucas. The idea resurfaced with Gutterbuhg in the Indiana Jones and the Monkey King script, which also has a Nazi named Mephisto. Rinzler had researched these concepts when writing The Complete Making of Indiana Jones.