DC Apr 1971. 1st Print. Skeates, Aparo. Cover: Nick Cardy. FN-/FN 5.7 2.5cm edge chip top cover, light stress, creamy-beige pages, well held together. 36pgs complete

Note: In this story Aquaman encounters an an algae creature that is thrown into outer space at the end of the issue. The same creature re-emerges in the Marvel Universe and battles Namor in Sub-Mariner #72. Hidden gem DC/Marvel Crossover.