| Unofficial Challengers of the Unknown Title Index |
CHALLENGERS OF THE UNKNOWN
1958 - 1978
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Series type: Ongoing Series
Began publication: April-May 1958
Ended publication: June-July 1978
Number of issues: 87
Ongoing Series
| Challengers of the Unknown Vol. 1 #1 (April-May 1958): "The Man Who Tampered With Infinity" |
| Challengers of the Unknown Vol. 1 #1/2 (April-May 1958): "The Human Pets" |
| Challengers of the Unknown Vol. 1 #2 (June-July 1958): "The Monster Maker" |
| Challengers of the Unknown Vol. 1 #2/2 (June-July 1958): "The Traitorous Challenger" |
| Challengers of the Unknown Vol. 1 #3 (August-September 1958): "The Secret of the Sorcerer's Mirror" |
| Challengers of the Unknown Vol. 1 #3/2 (August-September 1958): "The Menace of the Invincible Challenger" |
| Challengers of the Unknown Vol. 1 #4 (October-November 1958): "The Wizard of Time" |
| Challengers of the Unknown Vol. 1 #5 (December 1958-January 1959): "Riddle of the Star-Stone" |
| Challengers of the Unknown Vol. 1 #6 (February-March 1959): "Captives of the Space Circus" |
| Challengers of the Unknown Vol. 1 #6/2 (February-March 1959): "The Sorceress of Hidden Valley" |
| Challengers of the Unknown Vol. 1 #7 (April-May 1959): "The Beasts from Planet Nine" |
| Challengers of the Unknown Vol. 1 #7/2 (April-May 1959): "Isle of No Return" |
| Challengers of the Unknown Vol. 1 #8 (June-July 1959): "The Man Who Stole the Future" |
| Challengers of the Unknown Vol. 1 #8/2 (June-July 1959): "The Prisoners of Robot Planet" |
| Challengers of the Unknown Vol. 1 #9 (August-September 1959): "The Men Who Lost Their Memories" |
| Challengers of the Unknown Vol. 1 #9/2 (August-September 1959): "The Plot to Destroy Earth" |
| Challengers of the Unknown Vol. 1 #10 (October-November 1959): "The Cave-Man Beast" |
| Challengers of the Unknown Vol. 1 #10/2 (October-November 1959): "The Four Faces of Doom" |
| Challengers of the Unknown Vol. 1 #11 (December 1959-January 1960): "The Creatures from the Forbidden World" |
| Challengers of the Unknown Vol. 1 #12 (February-March 1960): "The Challenger from Outer Space" |
| Challengers of the Unknown Vol. 1 #12/2 (February-March 1960): "The Three Clues to Sorcery" |
| Challengers of the Unknown Vol. 1 #13 (April-May 1960): "The Prisoner of the Tiny Space Ball" |
| Challengers of the Unknown Vol. 1 #13/2 (April-May 1960): "The Creatures from the Past" |
| Challengers of the Unknown Vol. 1 #14 (June-July 1960): "The Man Who Conquered the Challengers" |
| Challengers of the Unknown Vol. 1 #14/2 (June-July 1960): "Captives of the Alien Beasts" |
| Challengers of the Unknown Vol. 1 #15 (August-September 1960): "The Return of Multi-Man" |
| Challengers of the Unknown Vol. 1 #15/2 (August-September 1960): "The Lady Giant and the Beast" |
| Challengers of the Unknown Vol. 1 #16 (October-November 1960): "The Incredible Metal Creature" |
| Challengers of the Unknown Vol. 1 #16/2 (October-November 1960): "Prisoners of the Mirage World" |
| Challengers of the Unknown Vol. 1 #17 (December 1960-January 1961): "The Genie Who Feared June" |
| Challengers of the Unknown Vol. 1 #17/2 (December 1960-January 1961): "Secret of the Space Capsules" |
| Challengers of the Unknown Vol. 1 #18 (February-March 1961): "The Menace of Mystery Island" |
| Challengers of the Unknown Vol. 1 #18/2 (February-March 1961): "The Doomed World of Tomorrow" |
| Challengers of the Unknown Vol. 1 #19 (April-May 1961): "The Alien Who Stole a Planet" |
| Challengers of the Unknown Vol. 1 #19/2 (April-May 1961): "The Beasts from the Fabulous Gem" |
| Challengers of the Unknown Vol. 1 #20 (June-July 1961): "Multi-Man Strikes Again" |
| Challengers of the Unknown Vol. 1 #20/2 (June-July 1961): "The Cosmic-Powered Creatures" |
| Challengers of the Unknown Vol. 1 #21 (August-September 1961): "The Weird World That Didn't Exist" |
| Challengers of the Unknown Vol. 1 #21/2 (August-September 1961): "The Challengers' Space-Pet Ally" |
| Challengers of the Unknown Vol. 1 #22 (October-November 1961): "The Curse of the Golden God" |
| Challengers of the Unknown Vol. 1 #22/2 (October-November 1961): "The Thing in Challenger Mountain" |
| Challengers of the Unknown Vol. 1 #23 (December 1961-January 1962): "Death Guarded the Doom Box" |
| Challengers of the Unknown Vol. 1 #23/2 (December 1961-January 1962): "The Island in the Sky" |
| Challengers of the Unknown Vol. 1 #24 (February-March 1962): "The Challengers Die at Dawn" |
| Challengers of the Unknown Vol. 1 #24/2 (February-March 1962): "Multi-Man, Master of Earth" |
| Challengers of the Unknown Vol. 1 #25 (April-May 1962): "Return of the Invincible Pharaoh" |
| Challengers of the Unknown Vol. 1 #25/2 (April-May 1962): "Captives of the Alien Hunter" |
| Challengers of the Unknown Vol. 1 #26 (June-July 1962): "Death Crowns the Challenger King" |
| Challengers of the Unknown Vol. 1 #26/2 (June-July 1962): "The Secret of the Space Spectaculars" |
| Challengers of the Unknown Vol. 1 #27 (August-September 1962): "The 1,001 Impossible Inventions" |
| Challengers of the Unknown Vol. 1 #27/2 (August-September 1962): "Master of the Volcano Men" |
| Challengers of the Unknown Vol. 1 #28 (October-November 1962): "The Revolt of the Terrible FX-1" |
| Challengers of the Unknown Vol. 1 #28/2 (October-November 1962): "Riddle of the Faceless Man" |
| Challengers of the Unknown Vol. 1 #29 (December 1962-January 1963): "Four Roads to Doomsday" |
| Challengers of the Unknown Vol. 1 #29/2 (December 1962-January 1963): "The War Between the Challenger Teams" |
| Challengers of the Unknown Vol. 1 #30 (February-March 1963): "Multi-Man--Villain Turned Hero" |
| Challengers of the Unknown Vol. 1 #30/2 (February-March 1963): "The Fifth Challenger" |
| Challengers of the Unknown Vol. 1 #31 (April-May 1963): "The Man Who Saved the Challengers' Lives" |
| Challengers of the Unknown Vol. 1 #32 (June-July 1963): "One Challenger Must Die" |
| Challengers of the Unknown Vol. 1 #32/2 (June-July 1963): "Cosmo Turns Traitor" |
| Challengers of the Unknown Vol. 1 #33 (August-September 1963): "The Challengers Meet Their Master" |
| Challengers of the Unknown Vol. 1 #33/2 (August-September 1963): "The Threat of the Trojan Robot" |
| Challengers of the Unknown Vol. 1 #34 (October-November 1963): "Beachhead, U.S.A." |
| Challengers of the Unknown Vol. 1 #34/2 (October-November 1963): "Multi-Woman, Queen of Disaster" |
| Challengers of the Unknown Vol. 1 #35 (December 1963-January 1964): "War Against the Moon-Beast" |
| Challengers of the Unknown Vol. 1 #35/2 (December 1963-January 1964): "Sons of the Challengers" |
| Challengers of the Unknown Vol. 1 #36 (February-March 1964): "The Giant in Challenger Moonbrain" |
| Challengers of the Unknown Vol. 1 #36/2 (February-March 1964): "Bodyguards to a Star" |
| Challengers of the Unknown Vol. 1 #37 (April-May 1964): "The Triple Terror of Mr. Dimension" |
| Challengers of the Unknown Vol. 1 #37/2 (April-May 1964): "The Last Days of the Challengers" |
| Challengers of the Unknown Vol. 1 #38 (June-July 1964): "The Menace the Challengers Made" |
| Challengers of the Unknown Vol. 1 #38/2 (June-July 1964): "Time Bomb on Holdout Island" |
| Challengers of the Unknown Vol. 1 #39 (August-September 1964): "The Phantom of the Fair" |
| Challengers of the Unknown Vol. 1 #39/2 (August-September 1964): "Rocky, the Genius Challenger" |
| Challengers of the Unknown Vol. 1 #40 (October-November 1964): "The Super Powers of the Challengers" |
| Challengers of the Unknown Vol. 1 #40/2 (October-November 1964): "The Spy in Challenger Cave" |
| Challengers of the Unknown Vol. 1 #41 (December 1964-January 1965): "The Challenger Who Quit" |
| Challengers of the Unknown Vol. 1 #41/2 (December 1964-January 1965): "Two Hours to Die" |
| Challengers of the Unknown Vol. 1 #42 (February-March 1965): "The League of Challenger-Haters" |
| Challengers of the Unknown Vol. 1 #42/2 (February-March 1965): "The Secret of the Masked Challenger" |
| Challengers of the Unknown Vol. 1 #43 (April-May 1965): "Four Against Monstro" |
| Challengers of the Unknown Vol. 1 #44/2 (June-July 1965): "Ace--the Challenger Who Went Bad" |
| Challengers of the Unknown Vol. 1 #43/2 (April-May 1965): "The Haunted Island" |
| Challengers of the Unknown Vol. 1 #44 (June-July 1965): "The Curse of the Evil Eye" |
| Challengers of the Unknown Vol. 1 #45 (August-September 1965): "The Queen of the Challenger-Haters" |
| Challengers of the Unknown Vol. 1 #46 (October-November 1965): "The Strange Schemes of the Gargoyle" |
| Challengers of the Unknown Vol. 1 #46/2 (October-November 1965): "The Best Challenger Wins" |
| Challengers of the Unknown Vol. 1 #47 (December 1965-January 1966): "The Sinister Sponge" |
| Challengers of the Unknown Vol. 1 #47/2 (December 1965-January 1966): "The Terrors of Mr. Tic-Tac-Toe" |
| Challengers of the Unknown Vol. 1 #48 (February-March 1966): "Twilight of the Challengers" |
| Challengers of the Unknown Vol. 1 #49 (April-May 1966): "The Tyrant Who Owned the World" |
| Challengers of the Unknown Vol. 1 #50 (June-July 1966): "Final Hour for the Challengers" |
| Challengers of the Unknown Vol. 1 #51 (August-September 1966): "Smash the Sponge Man--Or Die" |
| Challengers of the Unknown Vol. 1 #52 (October-November 1966): "Two Are Dead--Two to Go" |
| Challengers of the Unknown Vol. 1 #53 (December 1966-January 1967): "Who is the Traitor Among Us?" |
| Challengers of the Unknown Vol. 1 #54 (February-March 1967): "War of the Sub-Humans" |
| Challengers of the Unknown Vol. 1 #55 (April-May 1967): "Taps for Red" |
| Challengers of the Unknown Vol. 1 #56 (June-July 1967): "License to Kill" |
| Challengers of the Unknown Vol. 1 #57 (August-September 1967): "The Kook and the Kilowatt Killer" |
| Challengers of the Unknown Vol. 1 #58 (October-November 1967): "Live Till Tomorrow" |
| Challengers of the Unknown Vol. 1 #59 (December 1967-January 1968): "Seekeenakee, the Petrified Giant" |
| Challengers of the Unknown Vol. 1 #60 (February-March 1968): "The Thing That Could Not Die" |
| Challengers of the Unknown Vol. 1 #61 (April-May 1968): "The Robot Hounds of Chang" |
| Challengers of the Unknown Vol. 1 #61/2 (April-May 1968): "The Chall Without a Memory" |
| Challengers of the Unknown Vol. 1 #62 (June-July 1968): "The Legion of the Weird" |
| Challengers of the Unknown Vol. 1 #62/2 (June-July 1968): "Me--the Walking Nightmare" |
| Challengers of the Unknown Vol. 1 #63 (August-September 1968): "None Shall Escape the Walking Evil" |
| Challengers of the Unknown Vol. 1 #64 (October-November 1968): "Invitation to a Hanging" |
| Challengers of the Unknown Vol. 1 #65 (December 1968-January 1969): "The Devil's Circus" |
| Challengers of the Unknown Vol. 1 #66 (February-March 1969): "Rendezvous with Revenge" |
| Challengers of the Unknown Vol. 1 #67 (April-May 1969): "The Dream Killers" |
| Challengers of the Unknown Vol. 1 #67/2 (April-May 1969): "Ace: the Beast in the Bomb" |
| Challengers of the Unknown Vol. 1 #68 (June-July 1969): "One of Us is a Madman" |
| Challengers of the Unknown Vol. 1 #69 (August-September 1969): "The Secret of Skull Mountain" |
| Challengers of the Unknown Vol. 1 #70 (October-November 1969): "A Scream of Yesterdays" |
| Challengers of the Unknown Vol. 1 #71 (December 1969-January 1970): "When Evil Calls" |
| Challengers of the Unknown Vol. 1 #72 (February-March 1970): "A Plague of Darkness" |
| Challengers of the Unknown Vol. 1 #73 (April-May 1970): "The Curse of the Killer Time Forgot" |
| Challengers of the Unknown Vol. 1 #74 (June-July 1970): "To Call a Deadman" |
| Challengers of the Unknown Vol. 1 #75 (August-September 1970): "Ultivac Is Loose!" [REPRINT] |
| Challengers of the Unknown Vol. 1 #76 (October-November 1970): "The Traitorous Challenger" [REPRINT] |
| Challengers of the Unknown Vol. 1 #76/2 (October-November 1970): "The Secret of the Sorcerer's Mirror" [REPRINT] |
| Challengers of the Unknown Vol. 1 #77 (December 1970-January 1971): "The Menace of the Ancient Vials!" [REPRINT] |
| Challengers of the Unknown Vol. 1 #78 (February 1973): "Isle of No Return" [REPRINT] |
| Challengers of the Unknown Vol. 1 #78/2 (February 1973): "The Sorceress of Forbidden Valley" [REPRINT] |
| Challengers of the Unknown Vol. 1 #79 (March-April 1973): "The Monster Maker" [REPRINT] |
| Challengers of the Unknown Vol. 1 #79/2 (March-April 1973): "The Human Pets" [REPRINT] |
| Challengers of the Unknown Vol. 1 #80 (June-July 1973): "The Day The Earth Blew Up" [REPRINT] |
| Challengers of the Unknown Vol. 1 #81 (June-July 1977): "Multi-Man's Master Plan" |
| Challengers of the Unknown Vol. 1 #82 (August-September 1977): "The Lurker Below" |
| Challengers of the Unknown Vol. 1 #83 (October-November 1977): "Seven Doorways to Destiny" |
| Challengers of the Unknown Vol. 1 #84 (December 1977-January 1978): "To Save a Monster" |
| Challengers of the Unknown Vol. 1 #85 (February-March 1978): "The Creature from the End of Time" |
| Challengers of the Unknown Vol. 1 #86 (April-May 1978): "The War at Time's End" |
| Challengers of the Unknown Vol. 1 #87 (June-July 1978): "Twelve Million Years to Twilight" |