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A KidDetective series by Ron Roy about three kids - Josh, Dink and Ruth Rose - who solve mysteries in their town of Green Lawn. Each story has an alliterative title, such as ''The Canary Caper'', ''The Ninth Nugget'', and so on. After the first twenty-six books, Ron Roy wrote two shorter spin-off series, ''Super Edition'' and ''Calendar Mysteries''.

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!''A to Z Mysteries'' contains examples of:

* ActuallyNotAVampire: Dr. A. Cula (aka Jimmy Jett) in ''The Vampire's Vacation''.
* AdultFear: It's somewhat unnerving how often the main trio gets locked in locations by the crooks and were they not able to escape, probably wouldn't be found for hours.
** A more specific example occurs in ''White House White-Out''; the main trio teams up with the President's stepdaughter to rescue the kidnapped First Dog. After they end up stranded in the snow, Dink works out that the stepdaughter was the intended target.
* AddedAlliterativeAppeal: Every book in the series has an alliterative title.
** AlliterativeName: Donald David Duncan, Ruth Rose, Lucky O'Leary, etc.
* AprilFoolsPlot: ''The School Skeleton''.
* AuthorAvatar: Wallis Wallace, the famous author of a series of alliterative-titled mystery books. Ron Roy's first name is actually Wallace.
* BaldOfEvil: The title character in ''The Bald Bandit'', who steals from a bank.
* BigApplesauce: ''The Orange Outlaw'' has the three main kids visit Dink's Uncle in New York City.
* BigBrotherInstinct: In ''The Unwilling Umpire'', the titular umpire implicates himself in the theft of the story because he thinks his little brother did it. It turns out this isn't the first time he's done it either.
* BigEater: Josh Pinto.
* BlandNameProduct: From ''The Unwilling Umpire'', we have [=YuBuy=].com an auction site similar to Website/{{eBay}}.
* BookEnds: ''The Runaway Racehorse'' starts with Josh dripping some ketchup on his shirt from eating french fries and ends with him dripping ketchup on his shirt from eating a hamburger.
* CatapultNightmare: Dink in ''The Deadly Dungeon'' has a nightmare and then "bolt[s] upright in his bed," and has similar catapult nightmares on other occasions.
* ChekhovsGun: In ''The Jaguar's Jewel'', Dink looks at the case holding the titular jaguar while Ruth Rose feeds the fish, and Josh notices a letter opener. The kids solve the crime by finding the jewel in the fish tank and examine security footage to note when the letter opener changed directions.
** ChekhovsClassroom: Dink learns some French in ''The Kidnapped King'' and mispronounces ''jaune'', the French word for ''yellow'', as Joan, the name of the tutor. Using this knowledge, he later finds out that Joan is the kidnapper by connecting the trail of yellow glass pieces to this information which Sami, the victim, would have known because he was present for Dink's mispronunciation.
** ChekhovsSkill: In ''The Bald Bandit'', Ruth Rose's ability to scream really loudly comes in handy when the Bald Bandit tries to kidnap her.
* ChristmasEpisode: Super Edition 3: ''White House White-Out''.
* CoolOldLady: Gram Hathaway, Ruth Rose's grandmother, who first appeared in ''The Goose's Gold''.
* CowboyEpisode: ''The Ninth Nugget'' takes place on a dude ranch.
* CounterfeitCash: The three main kids find a whole stash of this in ''The Invisible Island''.
* CrossOver: Dink, Josh, and Ruth Rose meet the kids in the ''Capital Mysteries'' in ''White House White-Out'' and end up teaming up with them to rescue the kidnapped First Dog.
* DoubleMeaningTitle: ''The Orange Outlaw'' has the meanings "the outlaw that has orange hair" and "the outlaw who stole oranges". The outlaw is a trained monkey who steals a painting and leaves a big mess of orange peels because of its enormous appetite.
* EverytownAmerica: Green Lawn, Connecticut.
* FakedKidnapping: ''The Absent Author'' revolves around the kidnapping of the eponymous mystery author. Turns out the whole thing was a hoax in order for the author to investigate how real kids solve mysteries.
* FoodEnd: ''The Falcon's Feathers'' ends with an ice cream party for the heroes.
* FriendOnTheForce: Officer Fallon.
* FullNameUltimatum: The introduction to the first book says Dink's mom calls him [[AlliterativeName Donald David Duncan]] when she's upset.
* KidDetective: The protagonists, as this is part of the premise.
* INeverSaidItWasPoison: At the end of ''The Lucky Lottery'', the three main kids confront their prime suspect over a stolen lottery ticket.
-->'''Ruth Rose:''' And ''your'' fingerprints are on the mantel where you stole the Christmas card!
-->'''Dot Calm:''' You're crazy, kid. I was wearing glov...
* IronicNickname: Lucky O'Leary, so called because he's so unlucky.
* TheMeddlingKidsAreUseless: ''The Canary Caper'' revolves around a series of pet kidnappings ultimately solved by the police. Even when the three main kids discover a pattern in the kidnappings, Officer Fallon says they already made the connection. The kids hide outside the thief's next victim, but the police show up before they can even catch the petnapper.
* PandaingToTheAudience: In ''The Panda Puzzle'', the three protagonists search for a missing baby panda bear.
* RealLifeWritesThePlot: Partial example. When Ron Roy visited the White House during the Christmas season, he watched the hubbub of the festive preparations and remarked that it seemed that the Christmas season would be the perfect time to steal something from the White House since everyone is so busy that it would take a while for anyone to notice. The plot of ''White House White-Out'' revolves around a plot to kidnap the First Dog [[spoiler: with the real target being the president's [[AdultFear step]][[WouldHurtAChild daughter]]]]
* RepetitiveName: Wallis Wallace.
* SamusIsAGirl: In the first ''The Absent Author'', our detectives try to get reclusive mystery author Wallis Wallace to show up. Wallis doesn't show up, but the gang finds him kidnapped... then realizes Wallis is really tourist Mavis Green, and the kidnapped man is her brother, Walker.
* ScoobyDooHoax: ''The Zombie Zone''.
* ShoutOut:
** During ''The Runaway Racehorse'', Ruth Rose reads ''Literature/TheBlackStallion''.
** Josh has a dream in ''The Goose's Gold'' that anything he touches turns into chocolate like in ''The Chocolate Touch'.
* SurveillanceStationSlacker: In ''The Jaguar's Jewel'', Dink's uncle forgets that his office has a security system even when a thief steals the titular jewel from his office. Leaving it up to our three heroes to find the video and decipher the clues.
* ThreeAmigos: Josh, Dink and Ruth Rose. They're always together.
* TrailOfBreadCrumbs: Sami leaves one with kaleidoscope pieces when he's kidnapped in ''The Kidnapped King''. Thankfully [[TeamPet Pal]] can smell them out.
* UncattyResemblance: Grace Lockwood from ''The Falcon's Feathers'' looks very much like a falcon when she reads an issue of ''Falconry Today'' in a picture at the end of Chapter 5.
* WouldHurtAChild: Many of the crooks are all too happy to threaten the main trio.

!''Calendar Mysteries'' contains examples of:

* DeathbringerTheAdorable: The kids call the new neighbors' dog "[[NamesToRunAwayFromReallyFast Killer]]" because she looks big and fearsome. When it "attacks" Bradley they learn that its name is actually Daisy and that it really doesn't want to attack anyone.
* DidntThinkThisThrough: Nate comes up with a plan to recover some of their stuff that has fallen into the hands of their new neighbors. Bradley points out that if they were to use the ladder it would be stuck in the neighbors' yard. Nate responds that they'll figure it out later. In the end the ladder is left in the neighbors' yard.
* HalloweenEpisode: The October issue.
* HypnoFool: Invoked in a prank Mrs. Pinto pulls on her sons in ''May Magic''. When she gets hypnotized to believe she likes ducks, she starts acting like she ''is'' a duck.
** MyInstinctsAreShowing: {{Inverted}} since Hypo the Hypnotist also turns her into a duck.
* IdenticalTwinIDTag: Out of Brian and Bradley, Brian is the twin missing a tooth.
* MisunderstoodLonerWithAHeartOfGold: The twins get new neighbors with a menacing dog. They start working on a mysterious project which the kids decide to investigate. [[spoiler: Turns out the project is a Thanksgiving surprise for their grandchildren and "Killer" is actually a real nice dog.]]
* ScoobyDooHoax: Dink, Josh and Ruth Rose pull one on the four main kids to convince them that aliens have invaded Green Lawn.
* SpinOffspring: The series follows the adventures of Bradley and Brian Pinto (Josh's younger brothers), Nate Hathaway (Bradley's friend and Ruth Rose's little brother), and Lucy Armstrong (Dink's cousin).
* ThemeTwinNaming: Brian and Bradley.
* ValentinesDayEpisode: ''February Friend''.