Gold! There are rumors that long ago a treasure was hidden in a city now buried under the Nevada desert. Nancy and her friends plan to join a dig sponsored by two colleges to hunt for the gold. Before she starts, the young sleuth receives an ancient stone table with petroglyphs on it. With this amazing clue, however, come a threat and danger from a thief who also wants the treasure. One harrowing adventure after another besets Nancy, Bess, George, Ned, Burt, and Dave in 102-degree temperatures as they pursue Nancy’s hunches above and below ground. They are assisted by a fine woman and a young geology student, but both are unwilling participants in a strange plot. In the end Nancy and Ned nearly lose their lives, just after she has discovered the priceless hidden treasure of gold.

A fiery glowing eye in a museum, the abduction of Ned, the code name Cyclops, and a pilotless helicopter draw Nancy and her friends into a dangerous investigation.

Gold! There are rumors that long ago a treasure was hidden in a city now buried under the Nevada desert. Nancy and her friends plan to join a dig sponsored by two colleges to hunt for the gold. Before she starts, the young sleuth receives an ancient stone table with petroglyphs on it. With this amazing clue, however, come a threat and danger from a thief who also wants the treasure. One harrowing adventure after another besets Nancy, Bess, George, Ned, Burt, and Dave in 102-degree temperatures as they pursue Nancy’s hunches above and below ground. They are assisted by a fine woman and a young geology student, but both are unwilling participants in a strange plot. In the end Nancy and Ned nearly lose their lives, just after she has discovered the priceless hidden treasure of gold.

Asked to locate a stolen necklace of unusual value, Nancy soon discovers that strange and dangerous people are responsible for the theft.

Warnings not to go to Scotland can’t stop Nancy Drew from setting out on a thrill-packed mystery adventure. Undaunted by the vicious threats, the young detective – with her father and her two close friends – goes to visit her great-grandmother at an imposing estate in the Scottish Highlands, and to solve the mystery of a missing family heirloom. And there is another mystery to be solved: the fate of flocks of stolen sheep. Baffling clues challenge Nancy’s powers of deduction: a note written in the ancient Gaelic language, a deserted houseboat on Loch Lomond, a sinister red-bearded stranger in Edinburgh, eerie whistling noises in the Highlands. Startling discoveries in an old castle and in the ruins of a prehistoric fortress, lead Nancy closer to finding the solution to both mysteries.

When Nancy receives a letter informing her she’s heir to a fortune, she decides to track down the sender, as well as the other Nancy Drew.

A sheep farmer receives a mysterious telephone call shortly after he buys a series of pictures painted on parchment. “Decipher the message in the parchment and right a great wrong,” the voice says. Puzzled, the owner asks Nancy to help. With Junie, his daughter, Nancy tracks down a kidnapper and a group of extortionists. Is there a connection between the message in the parchment and a boy artist on another farm? And who is responsible for the atmosphere of fear in the neighborhood? After several harrowing experiences, Nancy begins to tighten the net around a ruthless villain and calls on the assistance of her friends Ned, Burt, Dave, Bess and George to bring his nefarious scheme to a dead end.