A Brief History
Random House
Weekly Reader

  1.  Terror Castle
  2.  Stuttering Parrot
  3.  Whispering Mummy
  4.  Green Ghost
  5.  Vanishing Treasure
  6.  Skeleton Island
  7.  Fiery Eye
  8.  Silver Spider
  9.  Screaming Clock
10.  Moaning Cave
11.  Talking Skull
12.  Laughing Shadow
13.  Crooked Cat
14.  Coughing Dragon
15.  Flaming Footprints
16.  Nervous Lion
17.  Singing Serpent
18.  Shrinking House
19.  Phantom Lake
20.  Monster Mountain
21.  Haunted Mirror
22.  Dead Man's Riddle
23.  Invisible Dog
24.  Death Trap Mine
25.  Dancing Devil
26.  Headless Horse
27.  Magic Circle
28.  Deadly Double
29.  Sinister Scarecrow
30.  Shark Reef
31.  Scar-Faced Beggar
32.  Blazing Cliffs
33.  Purple Pirate
34.  Wandering Cave Man
35.  Kidnapped Whale
36.  Missing Mermaid
37.  Two-Toed Pigeon
38.  Smashing Glass
39.  Trail of Terror
40.  Rogues' Reunion
41.  Creep-Show Crooks
42.  Wreckers' Rock
43.  Cranky Collector

Book of Mystery Puzzles

Find Your Fate
  1.  Weeping Coffin
  2.  Dancing Dinosaur
  7.  House of Horrors
  8.  Savage Statue

  1.  Hot Wheels
  2.  Murder To Go
  3.  Rough Stuff
  4.  Funny Business
  5.  An Ear For Danger
  6.  Thriller Diller
  7.  Reel Trouble
  8.  Shoot the Works
  9.  Foul Play
10.  Long Shot
11.  Fatal Error

Welcome, mystery lovers, to The Secrets of The Three Investigators!

The goal of this section is to provide the most complete and accurate information available on the North American editions, with an emphasis on history, collecting and conservation. The material presented is from my research and collecting experiences over the past 25 years and covers the series as it was published by Random House, Scholastic and Weekly Reader from 1964 to 2000. Along with the main contents, detailed data about each title, including scans of every cover, can be found by clicking its link on the left.

For first time visitors, I believe it is best if each portion is read in sequence. If that applies to you, then let us turn to Fundamentals, and begin...

Robert O. Held

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This page last updated on 27-Feb-06