Somewhere on the ocean floor
The megalomaniac known as Captain Omen devised a plot to seize control of the ocean floor of Earth, giving him command of three-quarters of the planet. In order to achieve his goal, he used a monstrous vessel he called Infra-World to roam the seas and house his crew while they surveyed and marked his territory.
Between secret mutinies and a colossal battle between Hulk and Omen's slave, Aquon, the home given to an undisclosed number of passengers was almost laid to rest in the very ocean its captain sought to claim. However, putting the safety of his vessel above his pride, Omen submitted to the demands of his foes until such a time he could be free of their influence and return with Infra-World to the bottom of the ocean once more.