Marvel Comics | May 1978
When a satellite mysteriously gains mass in orbit and crashes back to Earth, the Foundation for Oceanic Research calls on Mark Harris for a perilous recovery mission. Unseen to human eyes, a race of sentient spores clings to the wreckage, threatening to infect the planet. Only Mark's enhanced Atlantean senses can detect this invisible extraterrestrial threat, forcing him into a desperate race against time to contain the silent invasion.
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