| The Haunted Showboat | |
|---|---|
| Author(s) | Carolyn Keene |
| Series | Nancy Drew Mystery Stories |
| Publication date | 1957 |
| Preceded by | The Hidden Window Mystery (1956) |
| Followed by | The Secret of the Golden Pavilion (1959) |
The Haunted Showboat is the thirty-fifth book in the Nancy Drew mystery series. It was first published in 1957 under the pseudonym Carolyn Keene. The actual author was ghostwriter Harriet Stratemeyer Adams. It's Mardi Gras and Nancy is searching for a buried treasure with her friends, Bess and George.