Nancy finds herself in danger when she tries to solve the mystery of an old inn which seems to be jinxed.

Teenage detective Nancy Drew uses her courage and powers of deduction to solve the mysterious happenings in an old stone mansion. She recieved a phone call from her friend, Helen Corning. Helen says they were robbed, heard thumps in the night, and have heard strange music when no one has turned on the radio Helen begs Nancy to come to Twin Elms and try to solve the mystery.

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.

Nancy Drew's keen mind is tested when she searches for a missing will.

Nancy Drew tries to find a clue to the strange tapping sounds in the house of a retired actress.

Nancy Drew and her friends go on a ghost hunting expedition and become involved with a gang of thieves who concentrate their activities on collectors of valuable shells.

Nancy Drew becomes involved in a double mystery concerning a haunted bridge and jewel thieves.

Nancy Drew must use clues in a dead man's letters to find some unpublished musical manuscripts that will save an old man and his granddaughter from financial ruin.

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.

Nancy takes up residence on an old clipper to find a clue to its missing figurehead. She is confronted with fire, theft, and other dangerous situations.