Carolyn Keene

Teenage detective Nancy Drew uses her courage and powers of deduction to solve the mysterious happenings in an old stone mansion. After receiving a call from her friend Helen Corning, Nancy agrees to help solve a baffling mystery. Helen's Aunt Rosemary has been living with her mother at the old family mansion, and they have noticed many strange things. They have heard music, thumps, and creaking noises at night, and seen eerie shadows on the walls....

Nancy receives a letter meant for a British heiress who has the same name and, in her attempts to contact the other young woman, faces danger from a man who operates a Lonely Hearts Club mail fraud.

An anonymous diary is a mystery with handwriting that is difficult to decipher. It is filled with technical drawings and chemical formulas. Was the destructive explosion an accident or an act of revenge?

A wounded homing pigeon carrying a mysterious message lands in Nancy's yard and she finds herself investigating the workings of a sanatorium.

"Nancy Drew, forget the ghost hunt!" a male voice rasps on the telephone. Despite the mysterious warning, the pretty teen-age detective and a group of friends start out on a ghost-hunting expedition to investigate five places reputed to be haunted. Danger strikes at once when Nancy tries to overtake the canoe that paddles itself on Lake Devanee. Thrills and chills mount as the ghost hunters pursue a phantom horse and ghost rider racing across the...

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

While trying to help a friend out of a difficulty, teenage detective Nancy Drew has a perilous experience in and around a deserted bungalow.

Nancy Drew travels to New York to unravel the mystery surrounding her aunt's neighbors and the sacred fire dragon. Juvenile fiction.

Nancy Drew investigates when a doll goes missing at a sleepover party.

The blatant acts of a lady swindler posing as Nancy Drew arouse the suspicion of friends and local police against the real Nancy.