Nancy tackles two interesting mysteries for Cecily, a friend she just met. One involves Cecily's fianc and the other a family treasure. When Nancy Drew sets out to solve the mystery of a hidden family treasure for her friend Cecily Curtis at Misty Lake, she encounters strange aparitions and a haunted house.

Is there a clue in the mysterious stagecoach? Who will find it?

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.

Nancy investigates two mysteries. In New York she seeks a missing Chinese girl who is in danger. She also goes to Hong Kong to find several missing beneficiaries to a will.

When Nancy Drew and her friends go to a lake in New York to investigate reports of a woman gliding over water, they discover a treasure underwater.

Nancy Drew, the girl detective, and her friend, Ned Nickerson, find a pirate chest filled with gold coins in the hold of an old showboat

The eighteen-year-old girl detective must find a man who has been missing for years in order to locate the other half of a treasure map.

Charlie Adam's sister Alicia opens a boutique in River Heights. Way more people than expected show up, and the store window is smashed, and people are injured!

Nancy goes undercover at the exclusive Green Club when George's cousin, a candidate for city council, is targeted by a mysterious saboteur who threatens the plans to build a new sports complex.

Nancy Drew investigates a missing snowman.