Character: Sub-Mariner • Tradition: US Comics • Series Title: Conqueror of the Barren Earth • Universe: DC Universe • Grade: 6.5 Fine+ • Publisher: Marvel • Publication Year: 1985 • Format: Single Issue • Issue Number: 1-4 • Publication Date: 1985 • Era: Copper Age (1984-1991) • Genre: Superhero • Age: Modern