The Jewel of the Nile.

Joan Wilder is thrust back into a world of murder, chases, foreign intrigue... and love. This time out she's duped by a duplicitous Arab dignitary who brings her to the Middle East, ostensibly to write a book about his life. Of course, he's up to no good, and Joan is just another pawn in his wicked game. But Jack Colton and his sidekick Ralph show up to help our intrepid heroine save the day.