This is a list of all Hardy Boys books published, by series.

The Hardy Boys Mystery Stories (1927–2005) Grosset & Dunlap + Titles, authorship, and publication dates № Title Pub. Outline Manuscript Editor Rev. New outline Revised by 1 The Tower Treasure 1927 Edward Stratemeyer Leslie McFarlane Edward Stratemeyer 1959 Harriet Stratemeyer Adams Harriet Stratemeyer Adams 2 The House on the Cliff 1927 1959 3 The Secret of the Old Mill 1927 1962 Alistair Hunter 4 The Missing Chums 1928 1962 James Buechler 5 Hunting for Hidden Gold 1928 1963 Alistair Hunter 6 The Shore Road Mystery 1928 1964 David Grambs David Grambs 7 The Secret of the Caves 1929 1965 Andrew E. Svenson Andrew E. Svenson 8 The Mystery of Cabin Island 1929 1966 Anne Shultes Anne Shultes, Andrew E. Svenson, and Harriet Stratemeyer Adams 9 The Great Airport Mystery 1930 1965 James Duncan Lawrence and Harriet Stratemeyer Adams Tom Mulvey 10 What Happened at Midnight 1931 Edna Stratemeyer Squier Harriet Stratemeyer Adams 1967 Tom Mulvey 11 While the Clock Ticked 1932 1962 Harriet Stratemeyer Adams, Grace Grote, and Andrew E. Svenson James Buechler 12 Footprints Under the Window 1933 Leslie McFarlane 1965 David Grambs David Grambs 13 The Mark on the Door 1934 Harriet Stratemeyer Adams 1967 Tom Mulvey Tom Mulvey 14 The Hidden Harbor Mystery 1935 Edna Stratemeyer Squier 1961 Grace Grote James Buechler 15 The Sinister Signpost 1936 Harriet Stratemeyer Adams Leslie McFarlane 1968 Tom Mulvey Tom Mulvey 16 A Figure in Hiding 1937 Edna Stratemeyer Squier 1965 James Duncan Lawrence James Duncan Lawrence 17 The Secret Warning 1938 Leslie McFarlane and John Button 1966 18 The Twisted Claw 1939 Harriet Stratemeyer Adams John Button 1969 Tom Mulvey Tom Mulvey 19 The Disappearing Floor 1940 Edna Stratemeyer Squier 1964 James Duncan Lawrence James Duncan Lawrence 20 The Mystery of the Flying Express 1941 Harriet Stratemeyer Adams 1970 Andrew E. Svenson Vincent Buranelli 21 The Clue of the Broken Blade 1942 Edna Stratemeyer Squier 1970 Richard Deming 22 The Flickering Torch Mystery 1943 Harriet Stratemeyer Adams Leslie McFarlane 1971 Vincent Buranelli 23 The Melted Coins 1944 1970 Andrew E. Svenson 24 The Short-Wave Mystery 1945 1966 Patricia Doll, Priscilla Baker-Carr, and James Duncan Lawrence David Grambs 25 The Secret Panel 1946 Harriet Stratemeyer Adams 1969 Harriet Stratemeyer Adams Priscilla Baker-Carr 26 The Phantom Freighter 1947 Amy McFarlane 1970 27 The Secret of Skull Mountain 1948 George Waller, Jr. and Harriet Stratemeyer Adams 1966 David Grambs 28 The Sign of the Crooked Arrow 1949 Andrew E. Svenson 1970 Priscilla Baker-Carr 29 The Secret of the Lost Tunnel 1950 1968 David Grambs, June Dunn, and Priscilla Baker-Carr 30 The Wailing Siren Mystery 1951 Andrew E. Svenson and Harriet Stratemeyer Adams 1968 Priscilla Baker-Carr 31 The Secret of Wildcat Swamp 1952 William Halstead and William Dougherty 1969 32 The Crisscross Shadow 1953 Andrew E. Svenson Richard Cohen 1969 Andrew E. Svenson 33 The Yellow Feather Mystery 1953 William Dougherty 1971 34 The Hooded Hawk Mystery 1954 Harriet Stratemeyer Adams Charles S. Strong 1971 Harriet Stratemeyer Adams 35 The Clue in the Embers 1956 John Almquist 1972 36 The Secret of Pirates' Hill 1956 Andrew E. Svenson 1972 Andrew E. Svenson 37 The Ghost at Skeleton Rock 1957 James Duncan Lawrence 1966 38 The Mystery at Devil's Paw 1959 Andrew E. Svenson and Harriet Stratemeyer Adams 1973 Andrew E. Svenson and Harriet Stratemeyer Adams 39 The Mystery of the Chinese Junk 1960 Andrew E. Svenson 40 Mystery of the Desert Giant 1961 Andrew E. Svenson and Harriet Stratemeyer Adams James Buechler 41 The Clue of the Screeching Owl 1962 Harriet Stratemeyer Adams and Grace Grote 42 The Viking Symbol Mystery 1963 Andrew E. Svenson Alistair Hunter 43 The Mystery of the Aztec Warrior 1964 Harriet Stratemeyer Adams Harriet Stratemeyer Adams 44 The Haunted Fort 1965 David Grambs David Grambs Andrew E. Svenson, Harriet Stratemeyer Adams, and Jocelyn Starzyk 45 The Mystery of the Spiral Bridge 1966 Andrew E. Svenson Andrew E. Svenson Jocelyn Starzyk 46 The Secret Agent on Flight 101 1967 Tom Mulvey Tom Mulvey, Harriet Stratemeyer Adams, and Grace Grote Andrew E. Svenson and Jocelyn Starzyk 47 Mystery of the Whale Tattoo 1968 Andrew E. Svenson Jerrold Mundis Andrew E. Svenson and Lilo Wuenn 48 The Arctic Patrol Mystery 1969 Andrew E. Svenson Lilo Wuenn 49 The Bombay Boomerang 1970 Vincent Buranelli 50 Danger on Vampire Trail 1971 Andrew E. Svenson 51 The Masked Monkey 1972 Vincent Buranelli 52 The Shattered Helmet 1973 Andrew E. Svenson 53 The Clue of the Hissing Serpent 1974 54 The Mysterious Caravan 1975 55 The Witchmaster's Key 1976 Andrew E. Svenson and Vincent Buranelli Vincent Buranelli 56 The Jungle Pyramid 1977 Vincent Buranelli 57 The Firebird Rocket 1978 58 The Sting of the Scorpion 1979 James Duncan Lawrence James Duncan Lawrence

Simon & Schuster In 1979, the Hardy Boys books began to be published by Wanderer Books Simon & Schuster in paperback format. Though formatted differently from the original 58-volume series which continued under Grosset & Dunlap's control, these new books were published under the Hardy Boys Mystery Stories banner. These books feature increasingly contemporary cover illustrations and some books have multiple versions of the cover art.

To collectors of Hardy Boys and Nancy Drew books, books in the original series published at Simon & Schuster are called "Digests". This is due to the books resembling Digest-size paperbacks, differing from Grosset & Dunlap's hardcover books (one of the reasons Adams switched to Simon & Schuster was that Grosset & Dunlap did not like this move, while Simon & Schuster agreed to it).

In 2005, the first eight volumes from Wanderer (#59-66) were republished by Grosset & Dunlap, alongside the first eight Nancy Drew volumes from Wanderer. These republications went out of print in 2013.

Wanderer editions The main plot, formula, and continuity of the books remained similar to the original Grosset & Dunlap books still being published at the time. After Harriet Adams died in 1982, the Syndicate continued with five of its partners (Adams' remaining three children, plus authors Nancy Axelrod and Lilo Wuenn), until its sale to Simon & Schuster in 1987.

Night of the Werewolf was originally listed as the next book at the end of Sting of the Scorpion. Grosset & Dunlap continued to list this until they lost a court case against the Syndicate and Simon & Schuster in May 1980. The book was later revised to eliminate the next title and instead referenced the first book in the series, The Tower Treasure. They later published Night of the Werewolf and the next seven titles in 2005, with the permission and collaboration of Simon & Schuster. These last eight titles were discontinued once the license ran out.

+ Titles, authorship, and publication dates № Title Pub. Outline Manuscript Editor 59 Night of the Werewolf 1979 James Duncan Lawrence James Duncan Lawrence Lilo Wuenn 60 Mystery of the Samurai Sword 1979 61 The Pentagon Spy 1980 Vincent Buranelli Vincent Buranelli 62 The Apeman's Secret 1980 James Duncan Lawrence James Duncan Lawrence 63 The Mummy Case 1980 Vincent Buranelli Vincent Buranelli 64 Mystery of Smugglers Cove 1980 65 The Stone Idol 1981 66 The Vanishing Thieves 1981 Richard Deming Richard Deming 67 The Outlaw's Silver 1981 James Duncan Lawrence James Duncan Lawrence 68 The Submarine Caper 1981 Conrad Fuchs Conrad Fuchs 69 The Four-Headed Dragon 1981 Laurence Swinburne Laurence Swinburne 70 The Infinity Clue 1981 Karl Harr III Karl Harr III 71 Track of the Zombie 1982 Vincent Buranelli Vincent Buranelli 72 The Voodoo Plot 1982 Karl Harr III Karl Harr III 73 The Billion Dollar Ransom 1982 Laurence Swinburne Laurence Swinburne 74 Tic-Tac-Terror 1982 James Duncan Lawrence James Duncan Lawrence 75 Trapped at Sea 1982 Vincent Buranelli Vincent Buranelli 76 Game Plan for Disaster 1982 Laurence Swinburne Laurence Swinburne 77 The Crimson Flame 1983 Vincent Buranelli Vincent Buranelli 78 Cave-In 1983 Karl Harr III Karl Harr III 79 Sky Sabotage 1983 80 The Roaring River Mystery 1984 Karl Harr III Karl Harr III 81 The Demon's Den 1984 82 The Blackwing Puzzle 1984 83 The Swamp Monster 1985 Neal Barrett Jr. Neal Barrett Jr. 84 Revenge of the Desert Phantom 1985 85 The Skyfire Puzzle 1985 Neal Barrett Jr. Neal Barrett Jr.

Minstrel editions After volume 85, the series took a two-and-a-half-year hiatus due to the sale of the Stratemeyer Syndicate to Simon & Schuster. At this point, book packager Mega-Books took over the series, and hired different ghostwriters for the job (many of whom are still unknown). Mega-Books worked on the series until #153 Eye On Crime in 1998. Starting with #154 The Caribbean Cruise Caper, Simon & Schuster handled all books internally. The ghostwriters who are known are ones who have either been discovered through other resources, or have publicly revealed themselves as a ghostwriter for the series.