12 - Clue of the Gold Coin by Helen Wells

Clue of the Gold Coin immerses you in the thrilling world of Vicki Barr, a beloved character from the popular mystery series for girls, published by Grosset & Dunlap between 1947 and 1964. In this gripping 12th volume of The Vicki Barr Air Stewardess Series, Vicki finds herself in the heart of a dangerous conspiracy when priceless gold doubloons mysteriously vanish from her flight from New York to Tampa. The fearless stewardess must navigate through a web of deceit and danger, facing a ruthless gang of criminals who will stop at nothing to protect their secret. With the stakes high, Vicki works tirelessly to save the Gasperilla Pirate festival, rescue a trapped old man and a young friend whose life and career she inadvertently put at risk. Assisted by the FBI, Vicki battles against time and villains to locate the stolen ancient gold and crack a case that has left the police clueless. (Summary by amitsharma)