Young Indiana Jones and the Gypsy Revenge

Young Indiana Jones and the Gypsy Revenge is the sixth young adult novel in the series from Random House, and the fourth by author Les Martin. It was released in 1991.

Publisher's summary
Special delivery...deadly delivery!

''What brings Indy to France? Unbeatable attractions: a secret grave...a skeleton in knight's armor...a mysterious letter from a long-dead king!''

''Indy wants to buy the letter for his professor dad&mdash;it could lead to a treasure. But watch out, Indy! Other people are after it too&mdash;people with masks and daggers and guns. And keep an eye on that beautiful gypsy fortuneteller who offers help. Does she want to tell fortunes&mdash;or steal them?''

Characters

 * Monsieur Dupont
 * Henry Jones, Sr.
 * Indiana Jones
 * Sarah
 * Thornton N. Thornton VI

Artifacts

 * Crown of Louis IX

Locations

 * Aigues-Mortes, France
 * Marseilles, France
 * Saintes-Maries, France