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The Three Investigators Mystery Series |
The summaries for #23, 25, 26, 28, and 29 were taken from the back cover of the Random House softcover edition. The summaries for #24, 27, and 32 were adapted from the back cover summary. |
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#23 The Mystery of the Invisible Dog | ||
![]() Ever since the statue of a phantom wolf-dog was stolen, things have gone wrong at Paseo Place. A creepy shadow that passes through walls haunts one apartment. A fire breaks out in another. The ghost of a priest long dead appears. Who is frightening the helpless tenants? Are supernatural forces at work? The Three Investigators must find outbefore everyone is driven from their homes! |
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#24 The Mystery of Death Trap Mine | ||
![]() Why did Thurgood, a millionaire, buy a worthless silver mine? And why did he get a hungry attack dog to guard the entrance? The Three Investigators decide there is only one way to find out. They sneak into the dark, dangerous mine...and fall into a maze of dreadful secrets! |
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#25 The Mystery of the Dancing Devil | ||
![]() The ancient bronze statue of a powerful demon has been lost. Now it seems to dance from owner to owner! Always it stays one tantalizing step ahead of The Three Investigators as they desperately try to trace it. Could it be that the statue doesn't want to be found? Every time the young sleuths get close, a terrifying figure of a dancing devil bars their waythe statue come to life! |
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#26 The Mystery of the Headless Horse | ||
![]() The boys' task seems impossibleuntil a statue of a headless horse yields an amazing clue! |
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#27 The Mystery of the Magic Circle | ||
![]() Thieves have just stolen her valuable old films. And her memoirs have mysteriously disappeared before they could be published. Why would anyone want the aging actress to suffer? When The Three Investigators look into her hidden past, they begin to understand. The lady is a witch who believes that her spells can kill! |
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#28 The Mystery of the Deadly Double | ||
![]() It's up to the other Investigators to make the right movesand fast. The freedom of an African country is at stakeand so is Jupe's life! |
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#29 The Mystery of the Sinister Scarecrow | ||
![]() The Three Investigators know Letitia is telling the truthafter the rampaging scarecrow nearly chops their heads off! But they have to work fast. Letitia is more panicky with each passing hour. Someone is using the horrible scarecrow and the hungry killer ants to drive her mad! |
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#30 The Secret of Shark Reef | ||
![]() The Three Investigators are hired by Mr. Crowe, who wants to know why his boat keeps running out of gasoline when he knows that the tank is full with no leaks. The investigation leads the boys on a hunt for a missing Japanese submarine, where they discover a hidden secret that someone wants to stay hidden. |
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#31 The Mystery of the Scar-Faced Beggar | ||
![]() The dropped wallet belongs to a famous writer, Hector Sebastian. The boys visit him and figure out that he lost his wallet and is not likely connected to the robbery. As the Three Investigators seek answers, they uncover a dangerous plotand must be careful not to become victims! |
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#32 The Mystery of the Blazing Cliffs | ||
![]() Charles Barron, the hot-tempered owner of the ranch, immediately arms his men for a search. Mrs. Barron, a firm believer in UFOs, gets ready to welcome the aliens. Only The Three Investigators stop to question the bizarre events. Is Rancho Valverde really being invaded from outer space? Or could the wealthy Barrons be the victims of a brilliant hoax? |
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#33 The Mystery of the Purple Pirate | ||
![]() The wonderful offer receives dozens of responses. The Three Investigators reply to the ad and are dismayed when Major Karnes dismisses them with little interest. Suspecting a trick, the Three Investigators launch an investigation, which leads them to the Purple Pirate Lair, a local attraction. Karnes and his associates are digging for hidden treasure! |
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