http://mppl.org/services/youth-department/good-books/?list=Suspense%2C+Spies%2C+and+High+Speed+Chases&category=grades+4-5
List: Suspense, Spies, and High Speed Chases
Nick of Time
With the help of Lord Hawke, whose children have been taken by the evil pirate Captain Billy Blood, young Nick McIver uses a time machine to rescue the two children as well as change the course of events in two time periods, the Napoleonic Wars and World War II.
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Tunnels
When Will Burrows and his friend Chester embark on a quest to find Will's archaeologist father, who has inexplicably disappeared, they are led to a labyrinthine world underneath London, full of sinister inhabitants with evil intentions toward "Topsoilers" like Will and his father.
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Stormbreaker
After the death of the uncle who had been his guardian, fourteen-year-old Alex Rider is coerced to continue his uncle's dangerous work for Britain's intelligence agency, MI6.
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Steel Trapp
On a two-day train trip to enter his invention in the National Science Competition in Washington, D.C., fourteen-year-old Steven "Steel" Trapp, possessor of a remarkable photographic memory, becomes embroiled in an international plot of kidnapping and bribery that may have links to terrorists.
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Spy School
Twelve-year-old Ben Ripley leaves his public middle school to attend the CIA's highly secretive Espionage Academy, which everyone is told is an elite science school.
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SilverFin
This prequel to the adventures of James Bond, 007, introduces us to the young James when he's just started boarding school in England and is about to become involved in his first adventure.
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The Shadow Project
A young English thief stumbles on, and subsequently is recruited for, a super-secret operation that trains teenagers in remote viewing and astral projection techniques in order to engage in spying.
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Science Fair
The president of Kprshtskan is plotting to infiltrate the science fair at Hubble Middle School in Maryland in order to take over the United States government, but when Toby Harbinger, an ordinary student, makes up his mind finally to win the fair, the terrorists' plans go awry.
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Rise of the Ninja
It's the dawn of an age of peace in medieval Japan. But a power-hungry warlord is plotting to plunge the national into a deadly civil war. Enter Moonshadow, the newest agent for the Grey Light Order, a secret brotherhood of ninja spy warriors. Can Moonshadow defeat the evil warlord or will his first mission be his last?
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Playing with Fire
Reluctant orphan-turned-spy Max Segredo discovers intrigue at the Merry Sunshine Orphanage and must confront an international group bent on world domination, while uncovering mysteries from his past.
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Alibi Junior High
After thirteen-year-old Cody and his father, an undercover agent, are nearly killed, Cody moves in with his aunt in Connecticut, where he is helped with his adjustment to the trials of attending public school for the first time and investigating a threat in nearby woods by a wounded Iraq War veteran.
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National Espionage, Rescue, and Defense Society
While running a spy network from their elementary school, five unpopular misfits combine their talents and use cutting-edge gadgetry to fight evil around the world.
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Moving Target
Twelve-year-old Cassie Arroyo is a student in Rome, but her life changes when a secret organization, the Hastati, shoots her father--and she learns that she is a member of an ancient bloodline that enables her to use the Spear of Destiny, a legendary object that can alter the future.
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Mission Unstoppable
On a cross-country vacation with their parents, twins Coke and Pepsi, soon to be thirteen, fend off strange assassins as they try to come to terms with their being part of a top-secret government organization known as The Genius Files.
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The Maze of Bones
Rick Riordan's newest mystery centers around the Cahills - the most powerful family the world has ever known. The source of its power is a mystery that can only be unraveled by assembling 39 clues that have been hidden around the world throughout history.
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The League of Unexceptional Children
Evanston, Virginia, twelve-year-olds Jonathan Murray and Shelley Brown are completely average and forgettable until they are recruited to help the League of Unexceptional Children save the Vice President of the United States, who has been kidnapped along with an important code.
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The Infinity Code
In London, the teenaged geniuses of STORM, a secret organization dedicated to eliminating the world's misery through science and technology, uncover plans for a deadly weapon and race to find and dismantle it, then confront the corrupt scientist behind the scheme.
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H.I.V.E. : Higher-Institute-of-Villainous-Education
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Codename : Zero
"When a desperate man in a nondescript black suit asks thirteen-year-old Carson Fender to deliver a mysterious package for him, the middle schooler discovers there's something going on in his sleepy North Dakota hometown he had never expected--something involving the CIA"--
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The Boundless
Aboard "The Boundless," the greatest train ever built, on its maiden voyage across Canada, teenaged Will enlists the aid of a traveling circus to save the train from villains.
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