The Three Investigators Books in Order

by Robert Arthur #474 most popular 17 books · 1964–1986

novel series by Robert Arthur Jr.

Publication order

In the order the books were originally released.

The Secret of Terror Castle

1964 · Robert Arthur

The Secret of Terror Castle is an American juvenile detective novel written by Robert Arthur, Jr. It is the first book in the "Three Investigators"…
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The Mystery of the Stuttering Parrot

1967 · Robert Arthur

Jupiter Jones leads a team of young detectives in a mystery involving a lost parrot that recites Shakespeare but stutters. The parrot's disappearance…
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The Mystery of the Whispering Mummy

1965 · Robert Arthur

A 1965 novel by Robert Arthur Jr. in which the Three Investigators undertake a case involving an Egyptian mummy that whispers, but only to one man.
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The Mystery of the Green Ghost

1979 · Robert Arthur

The Three Investigators become entangled in the theft of a string of rare pearls and a fraudulent scheme involving a family inheritance as they try…
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The Mystery of the Vanishing Treasure

1966 · Robert Arthur

A 1966 novel by Robert Arthur Jr. Three young detectives become involved in mysteries connected to the disappearance of an ancient Japanese jeweled…
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The Secret of Skeleton Island

1986 · Robert Arthur

Jupiter Jones, Pete Crenshaw, and Bob Andrews fly to Skeleton Island at Alfred Hitchcock's request to help Pete's father with a motion picture and…
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The Mystery of the Fiery Eye

Year unknown · Robert Arthur

Jupiter Jones and his middle-school-age detective club, operating out of a junkyard belonging to one of the parents, follow a search for a jewel…
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The Mystery of the Silver Spider

1967 · Robert Arthur

The Three Investigators travel to the European country of Varania to solve a mystery involving a stolen silver spider, a crucial royal emblem. The…
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The Mystery of the Screaming Clock

1978 · Robert Arthur

The Three Investigators follow the piercing sound of an alarm clock's scream, a clue that pulls them into a complicated and dangerous trail leading…
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The Mystery of the Moaning Cave

Year unknown · Dennis Lynds

Jupiter Jones, Pete Crenshaw, and Bob Andrews are staying at the Dalton's Crooked-Y Ranch when a cave on the mountain begins moaning after fifty…
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The Mystery of the Talking Skull

Year unknown · Robert Arthur

An old trunk draws the three investigators into a case involving dangerous criminals who are searching for a hidden cache of stolen money.
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The Mystery of Phantom Lake

1973 · Dennis Lynds

The Mystery of Phantom Lake is a Three Investigators novel by Robert Arthur, Jr. and William Arden, published in 1973 in the United States as part of…
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The Mystery of the Dead Man's Riddle

1974 · Dennis Lynds

Three young detectives go on a high-stakes treasure hunt in order to restore a fortune to the rightful heirs.
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Companion & related books

Short-story collections and companion titles in this series.

The Mystery of the Flaming Footprints

1971 · Robert Arthur

The Mystery of the Flaming Footprints follows three investigators who look into the matter after an eccentric local artist disappears suddenly.
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The Secret of the Crooked Cat

1973 · Robert Arthur

Three young detectives use a clue provided by an unusual stuffed cat to investigate the mysterious troubles plaguing an accident-prone carnival.
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The Mystery of the Singing Serpent

1980 · M. V. Carey

The three investigators become involved in witchcraft when they try to rescue a woman who has fallen under the influence of snake worshippers.
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The Mystery of the Nervous Lion

Year unknown · Kin Platt

Hired to discover why a wild-animal farm's tame lion has become unpredictably nervous, three young detectives begin an investigation that uncovers a…
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Frequently asked questions

What order should I read the The Three Investigators books in?

Read them in publication order, starting with “The Secret of Terror Castle”. Start with “The Secret of Terror Castle.”

How many books are in the The Three Investigators series?

We list 17 books by Robert Arthur , published between 1964–1986.

Where can I buy the The Three Investigators books?

Each title above links to Amazon. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you.

Reading order compiled from author/publisher guidance and verified bibliographic data. Spotted an error? We continuously correct the catalog.