Charlton, 1956 Series
 
Mysteries of Unexplored Worlds #1
Mysteries of Unexplored Worlds #2
Issue 2
January 1957
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Mysteries of Unexplored Worlds #3
Mysteries of Unexplored Worlds #4
Mysteries of Unexplored Worlds #5
Issue 5
October 1957
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Mysteries of Unexplored Worlds #6
Issue 6
December 1957
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Mysteries of Unexplored Worlds #7
Issue 7
February 1958
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Mysteries of Unexplored Worlds #8
Mysteries of Unexplored Worlds #9
Mysteries of Unexplored Worlds #10
Issue 10
November 1958
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Mysteries of Unexplored Worlds #11
Mysteries of Unexplored Worlds #12
Mysteries of Unexplored Worlds #13
Mysteries of Unexplored Worlds #14
Mysteries of Unexplored Worlds #15
Mysteries of Unexplored Worlds #16
Mysteries of Unexplored Worlds #17
Mysteries of Unexplored Worlds #18
Mysteries of Unexplored Worlds #19
Mysteries of Unexplored Worlds #20
Issue 20
September 1960
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Mysteries of Unexplored Worlds #21
Issue 21
November 1960
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Mysteries of Unexplored Worlds #22
Mysteries of Unexplored Worlds #23
Mysteries of Unexplored Worlds #24
Mysteries of Unexplored Worlds #25
Mysteries of Unexplored Worlds #26
Issue 26
September 1961
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Mysteries of Unexplored Worlds #27
Issue 27
November 1961
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Mysteries of Unexplored Worlds #28
Mysteries of Unexplored Worlds #29
Mysteries of Unexplored Worlds #30
Mysteries of Unexplored Worlds #31
Mysteries of Unexplored Worlds #32
Mysteries of Unexplored Worlds #33
Issue 33
December 1962
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Mysteries of Unexplored Worlds #34
Issue 34
February 1963
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Mysteries of Unexplored Worlds #35
Mysteries of Unexplored Worlds #36
Mysteries of Unexplored Worlds #37
Mysteries of Unexplored Worlds #38
Mysteries of Unexplored Worlds #39
Issue 39
December 1963
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Mysteries of Unexplored Worlds #40
Issue 40
February 1964
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Mysteries of Unexplored Worlds #41
Mysteries of Unexplored Worlds #42
Mysteries of Unexplored Worlds #43
Mysteries of Unexplored Worlds #44
Issue 44
December 1964
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Mysteries of Unexplored Worlds #45
Issue 45
February 1965
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Mysteries of Unexplored Worlds #46
Mysteries of Unexplored Worlds #47
Mysteries of Unexplored Worlds #48
Issue 48
September 1965
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