The Mystery of the 99 Steps

Book by Harriet Adams under the pseudonym Carolyn Keene

The Mystery of the 99 Steps

Author	Carolyn Keene
Language	English
Series	Nancy Drew Mystery Stories
Genre	Juvenile literature
Publisher	Grosset & Dunlap
Publication date	1966
Publication place	United States
Media type	Print (Hardback & Paperback)
Preceded by	The Phantom of Pine Hill
Followed by	The Clue in the Crossword Cipher

The Mystery of the 99 Steps is the forty-third volume in the Nancy Drew Mystery Stories series. It was first published in 1966 under the pseudonym Carolyn Keene.^[1] The actual author was ghostwriter Harriet Stratemeyer Adams.^{[citation needed]}

Plot summary

Nancy looks for a flight of the 99 steps in France to solve the mystery of a friend's strange dream. Before Nancy, Bess, and George leaves the United States for France, a person calling himself Monsieur Neuf warns Nancy not to pursue her mission.

The girls arrive in Paris and join Nancy’s father, who is trying to find out who or what is causing wealthy financier Monsieur Leblanc to selling large amounts of securities.

Nancy determines that the case she is investigating involving the 99 steps is linked to the case her father is following. Nancy thinks that Monsieur Leblanc could be being blackmailed.

Startling discoveries convince the youn that Mr. Drew's case and her own mystery are linked by the 99 steps, and that a mysterious Arab has a strong hold over Leblanc. Nancy thinks it could be blackmail.

Nancy goes to an area in the Loire Valley to look for more clues, and Nancy, Bess, and George wind up in danger.

References

^ "Mystery and Adventure Series for Young Readers". The Baltimore Sun. 27 November 1966. p. 336. Retrieved 17 February 2024.

External links

The Mystery of the 99 Steps at Faded Page (Canada)

Nancy Drew

Stratemeyer Syndicate
Carolyn Keene
Edward Stratemeyer

Characters

Nancy Drew
George Fayne
Ned Nickerson

Writers

See also

Books
Nancy Drew Mystery Stories	The Secret of the Old Clock (1930) The Hidden Staircase (1930) The Bungalow Mystery (1930) The Mystery at Lilac Inn (1931) The Secret at Shadow Ranch (1931) The Secret of Red Gate Farm (1931) The Clue in the Diary (1932) Nancy's Mysterious Letter (1932) The Sign of the Twisted Candles (1933) The Password to Larkspur Lane (1933) The Clue of the Broken Locket (1934) The Message in the Hollow Oak (1935) The Mystery of the Ivory Charm (1936) The Whispering Statue (1937) The Haunted Bridge (1937) The Clue of the Tapping Heels (1939) The Mystery of the Brass Bound Trunk (1940) The Mystery at the Moss-Covered Mansion (1941) The Quest of the Missing Map (1942) The Clue in the Jewel Box (1943) The Secret in the Old Attic (1944) The Clue in the Crumbling Wall (1945) The Mystery of the Tolling Bell (1946) The Clue in the Old Album (1947) The Ghost of Blackwood Hall (1948) The Clue of the Leaning Chimney (1949) The Secret of the Wooden Lady (1950) The Clue of the Black Keys (1951) The Mystery at the Ski Jump (1952) The Clue of the Velvet Mask (1953) The Ringmaster's Secret (1953) The Scarlet Slipper Mystery (1954) The Witch Tree Symbol (1955) The Hidden Window Mystery (1956) The Haunted Showboat (1957) The Secret of the Golden Pavilion (1959) The Clue in the Old Stagecoach (1960) The Mystery of the Fire Dragon (1961) The Clue of the Dancing Puppet (1962) The Moonstone Castle Mystery (1963) The Clue of the Whistling Bagpipes (1964) The Phantom of Pine Hill (1965) The Mystery of the 99 Steps (1966) The Clue in the Crossword Cipher (1967) The Spider Sapphire Mystery (1968) The Invisible Intruder (1969) The Mysterious Mannequin (1970) The Crooked Banister (1971) The Secret of Mirror Bay (1972) The Double Jinx Mystery (1973) Mystery of the Glowing Eye (1974) The Secret of the Forgotten City (1975) The Sky Phantom (1976) The Strange Message in the Parchment (1977) Mystery of Crocodile Island (1978) The Thirteenth Pearl (1979) The Triple Hoax (1979) The Flying Saucer Mystery (1980) The Secret in the Old Lace (1980) The Greek Symbol Mystery (1980) The Swami's Ring (1981) The Kachina Doll Mystery (1981) The Twin Dilemma (1981) Captive Witness (1981) Race Against Time (1982) The Broken Anchor (1983) The Mardi Gras Mystery (1988) The Case of the Rising Stars (1988) The Mystery of the Masked Rider (1992) The Treasure in the Royal Tower (1995) The Wedding Day Mystery (1997) The E-mail Mystery (1998) Whispers in the Fog (2000) The Legend of the Emerald Lady (2000) Mystery By Moonlight (2002) The Bike Tour Mystery (2002) The Mistletoe Mystery (2002) No Strings Attached (2003) The Riding Club Crime (2003) Danger on the Great Lakes (2003) Werewolf in a Winter Wonderland (2003)
Other series	The Nancy Drew Files (1986-97) Nancy Drew Notebooks (1993-2005) Nancy Drew on Campus (1995-98) Nancy Drew: Girl Detective (2004-12) Nancy Drew and the Clue Crew (2006-15) Nancy Drew Diaries (2013-present) Nancy Drew Clue Book (2015-present)
Hardy Boys crossovers	Be a Detective Mystery Stories (1984-85) Nancy Drew & Hardy Boys Supermystery (1988-98) Nancy Drew and the Hardy Boys Super Mystery (2007-12)

Other media
Video games	Secrets Can Kill (1998) (Remastered, 2010) Stay Tuned for Danger (1999) Message in a Haunted Mansion (2000) Treasure in the Royal Tower (2001) The Final Scene (2001) Secret of the Scarlet Hand (2002) Ghost Dogs of Moon Lake (2002) The Haunted Carousel (2003) Danger on Deception Island (2003) The Secret of Shadow Ranch (2004) Curse of Blackmoor Manor (2004) Secret of the Old Clock (2005) Last Train to Blue Moon Canyon (2005) Danger By Design (2006) The Creature of Kapu Cave (2006) The White Wolf of Icicle Creek (2007) Legend of the Crystal Skull (2007) The Phantom of Venice (2008) The Haunting of Castle Malloy (2008) Dossier: Lights, Camera, Curses (2008) Ransom of the Seven Ships (2009) Dossier: Resorting to Danger (2009) Warnings at Waverly Academy (2009) Trail of the Twister (2010) Shadow at the Water's Edge (2010) The Captive Curse (2011) Alibi in Ashes (2011) Tomb of the Lost Queen (2012) The Deadly Device (2012) Ghost of Thornton Hall (2013) The Silent Spy (2013) The Shattered Medallion (2014) Labyrinth of Lies (2014) Sea of Darkness (2015) Midnight in Salem (2019)
Film and television	Nancy Drew: Detective (1938 film) Nancy Drew: Reporter (1939 film) Nancy Drew: Trouble Shooter (1939 film) Nancy Drew and the Hidden Staircase (1939 film) The Hardy Boys/Nancy Drew Mysteries (1977 TV series) Nancy Drew (1995 TV series) Nancy Drew (2002 TV movie) Nancy Drew (2007 film) Nancy Drew and the Hidden Staircase (2019 film) Nancy Drew (2019 TV series)

Other media

Video games