Aquaman, Volume 2 is a four-issue comic book limited series published by DC Comics from February to May, 1986. The series pitted the title character Aquaman against his arch-nemesis, the Ocean Master. Ocean Master's plot required gathering the ancient Zodiac Crystals in his quest for ultimate power. The series also introduced a new element of Atlantean culture in the form of the Tuatha De Danann of Thierna Na Oge.