A Trail of Question Marks


     In case, by some chance, you are not familiar with the books -- the titles of which follow -- you may be asking yourself why A Trail of Question Marks? For the answer to that question, we will turn the microphone over to Jupiter Jones, who says in The Secret of Terror Castle, “The question mark is the universal symbol of something unknown. We are prepared to solve any puzzle, riddle, mystery, enigma, or conundrum which may be brought to us.” The motto of the Three Investigators firm is “We Investigate Anything”, and the firm’s symbol is three question marks. May we offer you their card?

     Here, then, are the cases The Three Investigators have -- to date -- investigated...

 
 
 
 
 
 
 
 

 

Alfred Hitchcock and The Three Investigators in...

#1: The Secret Of Terror Castle (by Robert Arthur 1964)
#2: The Mystery Of The Stuttering Parrot (by Robert Arthur 1964)
#3: The Mystery Of The Whispering Mummy (by Robert Arthur 1965)
#4: The Mystery Of The Green Ghost (by Robert Arthur 1965)
#5: The Mystery Of The Vanishing Treasure (by Robert Arthur 1966)
#6: The Secret Of Skeleton Island (by Robert Arthur, 1966)
#7: The Mystery Of The Fiery Eye (by Robert Arthur, 1967)
#8: The Mystery Of The Silver Spider (by Robert Arthur 1967)
#9: The Mystery Of The Screaming Clock (by Robert Arthur 1968)
#11: The Mystery Of The Talking Skull (by Robert Arthur 1969)


#10: The Mystery Of The Moaning Cave (1968, by William Arden)
#12: The Mystery Of The Laughing Shadow (1969, by William Arden)
#13: The Secret Of The Crooked Cat (1970, by William Arden)
#14: The Mystery Of The Coughing Dragon (1970, by Nick West)
#15: The Mystery Of The Flaming Footprints (1971, by M. V. Carey)
#16: The Mystery Of The Nervous Lion (1971, by Nick West)
#17: The Mystery Of The Singing Serpent (1972, by M. V. Carey)
#18: The Mystery Of The Shrinking House (1972, by William Arden)
#19: Secret Of Phantom Lake (1973, by William Arden)
#20: The Mystery Of Monster Mountain (1973, by M. V. Carey)


#21: The Secret Of The Haunted Mirror (1974, by M. V. Carey)
#22: The Mystery Of The Dead Man's Riddle (1974, by William Arden)
#23: The Mystery Of The Invisible Dog (1975, by M. V. Carey)
#24: The Mystery Of Death Trap Mine (1976, by M. V. Carey)
#25: The Mystery Of The Dancing Devil (1976, by William Arden)
#26: The Mystery Of The Headless Horse (1977, by William Arden)
#27: The Mystery Of The Magic Circle (1978, by M. V. Carey)
#28: The Mystery Of The Deadly Double (1978, by William Arden) #
#29: The Mystery Of The Sinister Scarecrow (1979, by M. V. Carey)
#30: The Secret Of The Shark Reef (1979, by William Arden)



The Three Investigators in ...

#31: The Mystery Of The Scar-Faced Beggar (1981, by M. V. Carey)
#32: The Mystery Of The Blazing Cliffs (1981, by M. V. Carey)
#33: The Mystery Of The Purple Pirate (1982, by William Arden)
#34: The Mystery Of The Wandering Cave Man (1982, by M. V. Carey)
#35: The Mystery Of The Kidnapped Whale (1983, by Marc Brandel)
#36: The Mystery Of The Missing Mermaid (1983,M. V. Carey)
#37: The Mystery Of The Two-Toed Pigeon (1984, by Marc Brandel)
#38: The Mystery Of The Smashing Glass (1984, by William Arden)
#39: The Mystery Of The Trail Of Terror (1984, by M. V. Carey)
#40: The Mystery Of The Rogues' Reunion (1985, by Marc Brandel)
#41: The Mystery Of The Creep-Show Crooks (1985, by M. V. Carey)
#42: The Mystery Of Wrecker's Rock (1986, by William Arden)
#43: The Mystery Of The Cranky Collector (1987, by M. V. Carey)



Find Your Fate Mysteries (1985-1987)

RH#1: Case of the Weeping Coffin (1985, by Megan Stine and H. William Stine)
RH#2: Case of the Dancing Dinosaur (by Rose Estes)
RH#7: Case of the House Of Horrors (by Megan Stine and H. William Stine)
RH#8: Case of the Savage Statue (1987, by M.V. Carey)



Crimebusters (1989-1990)

#1: Hot Wheels (1989, by William Arden)
#2: Murder To Go (1989, by Megan Stine and H. William Stine)
#3: Rough Stuff (1989, by G.H. Stone)
#4: Funny Business (1989, by William MacCay)
#5: An Ear For Trouble (1989, by Marc Brandel
#6: Thriller Diller (1989, by Megan Stine and H. William Stine)

#7: Reel Trouble (1989, by G.H. Stone)
#8: Shoot the Works (1990, by William McCay)
#9: Foul Play (1990, by Peter Lerangis)
#10: Long Shot (1990, by Megan Stine and H. William Stine)
#11: Fatal Error (1990, by G.H. Stone)



Die Drei ??? (1993-98) German language originals, never published in the US.)
[spelling is probably inexact]

#57: Tatort Zirkus (1993, by Brigitte Johanna Henkel-Waidhofer)
#58: und der verrckte Maler (1993, by Brigitte Johanna Henkel- Waidhofer)
#59: Giftiges Wasser (1993, by Brigitte Johanna Henkel-Waidhofer)
#60: Dopingmixer (1994, by Brigitte Johanna Henkel-Waidhofer)
#61: und die Rache des Tigers (1994, by Brigitte Johanna Henkel- Waidhofer)
#62: Spuk im Hotel (1994, by Brigitte Johanna Henkel-Waidhofer)
#63: Fußball-Gangster (1995, by Brigitte Johanna Henkel-Waidhofer)
#64: Geisterstadt (1995, by Brigitte Johanna Henkel-Waidhofer)
#65: Diamantenschmuggel (1995, by Brigitte Johanna Henkel-Waidhofer)
#66: und die SchattenmSnner (1995, by Brigitte Johanna Henkel- Waidhofer)
#67: und das Geheimnis der SSrge (1996, by Brigitte Johanna Henkel- Waidhofer)
#68: und der Schatz im Bergsee (1996, by Brigitte Johanna Henkel- Waidhofer)
#69: SpSte Rache (1996, by Brigitte Johanna Henkel-Waidhofer)
#70: Schsse aus dem Dunkeln (1996, by Brigitte Johanna Henkel- Waidhofer)
#71: und die verschwundene Seglerin (1996, by Brigitte Johanna Henkel- Waidhofer)
#72: Dreckiger Deal (1996, by Brigitte Johanna Henkel-Waidhofer)
#73: Poltergeist (1997, by Andre Marx)
#74: und das brennende Schwert (1997, by Andre Marx)
#75: Die Spur des Raben (1997, by Andre Marx)
#76: Stimmen aus dem Nichts (1997, by Andre Minninger)
#77: Pistenteufel (1997, by Ben Nevis)
#78: Das leere Grab (1997, by Andre Marx)
#79: Im Bann des Voodoo (1998, by Andre Minninger)
#80: Geheimsache UFO (1998, by Andre Marx)
#81: Verdeckte Fouls (1998, by Ben Nevis)
#82: Die Karten des Bssen (1998, by Andre Minninger)
#83: Meuterei auf hoher See (1998, by Andre Marx)
#84: Musik des Teufels (1998, by Andre Marx)