Ultra-Thriller - Wikipedia

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The Ultra-Thriller series is a detective/action fiction series published between August 1992 and June 1993 by Archway Paperbacks (an imprint of Simon & Schuster). It was a spin-off of The Hardy Boys Casefiles and the Tom Swift IV series and joined boy inventor Tom Swift with the crime solving Hardy boys, Frank & Joe. Although The Hardy Boys pseudonym, Franklin W. Dixon was used, this series was more akin to the Tom Swift IV series by Victor Appleton.

List of titles

Alien Factor
Time Bomb

External links

The Hardy Boys

Characters

List of characters

Writers

See also

Books
Original	The Tower Treasure (1927) The House on the Cliff (1927) The Secret of the Old Mill (1927) The Missing Chums (1928) Hunting for Hidden Gold (1928) The Shore Road Mystery (1928) The Secret of the Caves (1929) The Mystery of Cabin Island (1929) The Great Airport Mystery (1930) What Happened at Midnight (1931) While the Clock Ticked (1932) Footprints Under the Window (1933) The Mark on the Door (1934) The Hidden Harbor Mystery (1935) The Sinister Signpost (1936) A Figure in Hiding (1937) The Secret Warning (1938) The Twisted Claw (1939) The Disappearing Floor (1940) The Mystery of the Flying Express (1941) The Clue of the Broken Blade (1942) The Flickering Torch Mystery (1943) The Melted Coins (1944) The Short-Wave Mystery (1945) The Secret Panel (1946) The Phantom Freighter (1947) The Secret of Skull Mountain (1948) The Sign of the Crooked Arrow (1949) The Secret of the Lost Tunnel (1950) The Wailing Siren Mystery (1951) The Secret of Wildcat Swamp (1952) The Crisscross Shadow (1953) The Yellow Feather Mystery (1954) The Hooded Hawk Mystery (1954) The Clue in the Embers (1956) The Secret of Pirates' Hill (1956) The Ghost at Skeleton Rock (1957) The Mystery at Devil's Paw (1959) The Mystery of the Chinese Junk (1960) Mystery of the Desert Giant (1961) The Clue of the Screeching Owl (1962) The Viking Symbol Mystery (1963) The Mystery of the Aztec Warrior (1964) The Haunted Fort (1965) The Mystery of the Spiral Bridge (1966) The Secret Agent on Flight 101 (1967) Mystery of the Whale Tattoo (1968) The Arctic Patrol Mystery (1969) The Bombay Boomerang (1970) Danger on Vampire Trail (1971) The Masked Monkey (1972) The Shattered Helmet (1973) The Clue of the Hissing Serpent (1974) The Mysterious Caravan (1975) The Witchmaster's Key (1976) The Jungle Pyramid (1977) The Firebird Rocket (1978) The Sting of the Scorpion (1979) Night of the Werewolf (1979) Mystery of the Samurai Sword (1979) The Pentagon Spy (1980) The Apeman's Secret (1980) The Mummy Case (1980) Mystery of Smugglers Cove (1980) The Stone Idol (1981) The Vanishing Thieves (1981) The Outlaw's Silver (1981) The Submarine Caper/Deadly Chase (1981, retitled in 1987) The Four-Headed Dragon (1981) The Infinity Clue (1981) Track of the Zombie (1982) The Voodoo Plot (1982) The Billion Dollar Ransom (1982) Tic-Tac-Terror (1982) Trapped at Sea (1982) Game Plan for Disaster (1982) The Crimson Flame (1983) The Skyfire Puzzle (1985) Cast of Criminals (1989) Fear on Wheels (1991) Day of the Dinosaur (1994) Crime in the Kennel (1995) Cross-Country Crime (1995) The Search for the Snow Leopard (1996) Eye on Crime (1998) The Caribbean Cruise Caper (1999) The Hunt for the Four Brothers (1999) A Will to Survive (1999) Daredevils (1999) A Game Called Chaos (2000) Training for Trouble (2000) The End of the Trail (2000) Skin & Bones (2000) Crime in the Cards (2001) Past and Present Danger (2001) Trouble Times Two (2001) The Castle Conundrum (2001) Passport to Danger (2003) Warehouse Rumble (2004) The Dangerous Transmission (2004)
Casefiles	Dead on Target (1987) Evil, Inc. (1987) Cult of Crime (1987) See No Evil (1987) Street Spies (1988) Countdown to Terror (1989) Running on Empty (1990) The Last Laugh (1990) River Rats (1997)
Other series and titles	The Hardy Boys Detective Handbook (1959) The Clues Brothers (1997-2000) Hardy Boys: Undercover Brothers (2005-12) The Hardy Boys Secret Files (2010-15) The Hardy Boys Adventures (2013-present) The Hardy Boys Clue Book (2016-present)
Crossovers	Be a Detective Mystery Stories (1984-85, with Nancy Drew) Nancy Drew & Hardy Boys Supermystery (1988-98, with Nancy Drew) Hardy Boys and Tom Swift Ultra Thriller (1992-93, with Tom Swift) Nancy Drew and the Hardy Boys Super Mystery Series (2007-12, with Nancy Drew)

Other media
Television	The Hardy Boys (The Mickey Mouse Club) Hardy Boys (animated) The Hardy Boys & Nancy Drew Mysteries The Hardy Boys (1995) The Hardy Boys (2020)
Video games	Last Train to Blue Moon Canyon The Creature of Kapu Cave Nancy Drew/Hardy Boys: Super Mystery (cancelled) The Tower Treasure Treasure on the Tracks

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