Books like Danger Unlimited by Franklin W. Dixon
When Brett Cooper, newly introduced by Joe’s girlfriend, finds himself targeted by an unseen killer, the Hardy Boys embark on a perilous investigation. They dig into his mysterious background, following clues that tie him to a long‑hidden motive. As danger escalates, the brothers must use all their detective skills to expose the truth and protect Brett before it’s too late.
First publish date: 1993
Genre: Mystery & Detective/Private Investigator
Authors: Franklin W. Dixon
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Books similar to Danger Unlimited (30 similar books)
In this Hardy Boys mystery, Frank and Joe Dixon investigate threats against Buddy Death and his heavy metal band during their town visit, racing to uncover the culprit before the musicians can rock on safely.
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When kidnappers abduct their mother, the Hardy Boys race to a Massachusetts tech company, where Fenton Hardy works on a cutting‑edge AI chip, to save her before the deadline runs out.
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When Biff Hooper vanishes during a survival camp in Georgia, the Hardy Boys uncover a sinister training ground for elite attack troops.
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The Hardy Boys travel to Philadelphia to stop a planned attack on the city’s Big Air Games, an extreme sports event, keeping the competition—and the city—safe from danger.
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When Frank’s girlfriend Callie Shaw vanishes, she leaves behind a cryptic film. The Hardy Boys investigate the footage, uncovering a secret society and a ruthless cop in the city’s nightmarish underworld.
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Frank and Joe Hardy arrive in Greece for a student exchange and are thrust into espionage and kidnapping when a street fight escalates into a diplomatic crisis near Yugoslavia.
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Friends Frank and Joe investigate the disappearance of Phil, a high-tech weapons engineer, uncovering a kidnapping plot that threatens global security.
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Detective kids Hardy Boys uncover a secret cloning scheme and must protect a covert government agency from rogue scientists.
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The Hardy boys investigate a spectacular heist at Indiana model‑train magnate Hamilton Harte’s multi‑million‑dollar complex after the entire collection disappears.
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Frank and Joe Hardy volunteer for a soccer match in Paris, only to find the stadium and city under a dangerous attack. With spy gear and their wits, they race to stop the saboteurs before the city is destroyed.
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A dramatic rescue mission unfolds when soccer star Carlos Capac faces sabotage and a kidnapped father, forcing the Hardy Boys to investigate and intervene.
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The Hardy Boys join a televised competition, "Maximum Challenge," only to discover that the show's contestants' unique skills are the key to solving a string of daring burglaries in Bayport.
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Franklin W. Dixon’s Hardy Boys hunt a vanished investment counsellor and a dead clerk in a mystery set against the shadows of Wall Street.
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Frank and Joe Hardy navigate a perilous Caribbean voyage that turns into a hunt for a ruthless black market syndicate trading in human life.
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Frank and Joe Hardy investigate a shady scam kingpin, Bernhard Kruger, while on vacation in Bermuda, only to find themselves pursued by danger and mysteriously dragged into the Bermuda Triangle.
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The Hardy Boys travel to Mumbai to investigate sabotage on a Bollywood film set, where bombs, deadly weapons, and a menacing murderer threaten production and the boys’ safety.
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Hardy Boys teens face new mystery in Bayport High as vandalism, arson, and murder cloud the town, forcing the brothers to uncover the killer before danger escalates.
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The Hardy Boys investigate a hidden danger while climbing the Himalayas, facing treacherous terrain and a plotted ambush by a murderer.
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Two teenage sleuths, Frank and Joe Hardy, are pulled into a high-stakes mystery when a former high‑school friend of their aunt becomes an investigative reporter anew. Doubtful of the man's past, the boys investigate his allegations, but the trail leads straight into danger.
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The Hardy Boys investigate sabotage threatening a high‑speed Grand Prix race, using their detective skills to uncover the culprit before the finish line.
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When the Hardy Boys take on a summer construction job on a towering skyscraper, they uncover a plot by thugs threatening the mega‑project and the lives of everyone involved.
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Frank and Joe Hardy help a college orienteering champion prepare for a national event while uncovering the sabotage behind a series of accidents.
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Frank and Joe solve a thrilling mystery at a Dry Valley rodeo where a cowboy’s performance ends abruptly amid a rifle shootout, uncovering a dangerous plot that threatens money and life.
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Frank and Joe Hardy infiltrate a movie set as stuntmen, uncovering sabotage and a plot to steal a fortune that lands them in jail; they must escape to clear their names and save a million dollars.
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Frank and Joe Hardy explore their uncle’s New Hampshire maple farm during spring break, only to discover a dangerous gang threatening the syrup crop with bombs and chainsaws.
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Frank and Joe Hardy are drafted onto their school’s basketball team, only to confront a masked kidnapping ring targeting new players amid a deadly initiation scheme.
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Franklin W. Dixon’s Hardy Boys protect 16‑year‑old presidential son Neal Jordan during a snowy Bayport adventure, confronting kidnappers amid snowmobiles, snowboards, ice picks and parachutes.
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When the Sea Spirit II threatens to vanish beneath icy waters, the Hardy Boys must race against time to uncover the mystery and save the crew.
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When their father dies, the Hardy Boys hunt the men they blame, taking on the international smuggling syndicate Phoenix Enterprises and putting themselves in constant peril.
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The Hardy Boys: The Tower Treasure by Franklin W. DixonThe Hardy Boys: The Secret of the Old Mill by Franklin W. Dixon
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